139452552 has 48 divisors (see below), whose sum is σ = 397566000. Its totient is φ = 44037216.

The previous prime is 139452541. The next prime is 139452553. The reversal of 139452552 is 255254931.

It is a happy number.

139452552 is a `hidden beast` number, since 13 + 94 + 5 + 2 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139452553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49602 + ... + 52337.

It is an arithmetic number, because the mean of its divisors is an integer number (8282625).

Almost surely, 2^139452552 is an apocalyptic number.

139452552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139452552 is an abundant number, since it is smaller than the sum of its proper divisors (258113448).

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

139452552 is a wasteful number, since it uses less digits than its factorization.

139452552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101970 (or 101963 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 139452552 is about 11809.0030061813. The cubic root of 139452552 is about 518.5717116641.

The spelling of 139452552 in words is "one hundred thirty-nine million, four hundred fifty-two thousand, five hundred fifty-two".