139249962 has 32 divisors (see below), whose sum is σ = 310196160. Its totient is φ = 46303920.

The previous prime is 139249961. The next prime is 139249969. The reversal of 139249962 is 269942931.

It is a happy number.

139249962 is a `hidden beast` number, since 13 + 92 + 499 + 62 = 666.

It is not an unprimeable number, because it can be changed into a prime (139249961) 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 15 ways as a sum of consecutive naturals, for example, 21012 + ... + 26832.

It is an arithmetic number, because the mean of its divisors is an integer number (9693630).

Almost surely, 2^139249962 is an apocalyptic number.

139249962 is an abundant number, since it is smaller than the sum of its proper divisors (170946198).

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

139249962 is a wasteful number, since it uses less digits than its factorization.

139249962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275 (or 6269 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 139249962 is about 11800.4221110942. The cubic root of 139249962 is about 518.3204712319.

The spelling of 139249962 in words is "one hundred thirty-nine million, two hundred forty-nine thousand, nine hundred sixty-two".