139022352 has 160 divisors (see below), whose sum is σ = 471080960. Its totient is φ = 38413440.

The previous prime is 139022341. The next prime is 139022353. The reversal of 139022352 is 253220931.

139022352 is a `hidden beast` number, since 1 + 390 + 223 + 52 = 666.

It is a super-2 number, since 2×139022352² = 38654428711223808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (139022353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93003 + ... + 94485.

It is an arithmetic number, because the mean of its divisors is an integer number (2944256).

Almost surely, 2^139022352 is an apocalyptic number.

139022352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139022352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235540480).

139022352 is an abundant number, since it is smaller than the sum of its proper divisors (332058608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139022352 is a wasteful number, since it uses less digits than its factorization.

139022352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 139022352 is about 11790.7740203941. The cubic root of 139022352 is about 518.0379115875.

The spelling of 139022352 in words is "one hundred thirty-nine million, twenty-two thousand, three hundred fifty-two".