139953282 has 64 divisors (see below), whose sum is σ = 349691904. Its totient is φ = 36414720.

The previous prime is 139953271. The next prime is 139953349. The reversal of 139953282 is 282359931.

It is a super-2 number, since 2×139953282² = 39173842285143048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18973 + ... + 25295.

It is an arithmetic number, because the mean of its divisors is an integer number (5463936).

Almost surely, 2^139953282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139953282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174845952).

139953282 is an abundant number, since it is smaller than the sum of its proper divisors (209738622).

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

139953282 is a wasteful number, since it uses less digits than its factorization.

139953282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its digits is 116640, while the sum is 42.

The square root of 139953282 is about 11830.1852056508. The cubic root of 139953282 is about 519.1916459166.

The spelling of 139953282 in words is "one hundred thirty-nine million, nine hundred fifty-three thousand, two hundred eighty-two".