139717502 has 16 divisors (see below), whose sum is σ = 219801600. Its totient is φ = 66481272.

The previous prime is 139717499. The next prime is 139717517. The reversal of 139717502 is 205717931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (13737600).

Almost surely, 2^139717502 is an apocalyptic number.

139717502 is a deficient number, since it is larger than the sum of its proper divisors (80084098).

139717502 is a wasteful number, since it uses less digits than its factorization.

139717502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 139717502 is about 11820.2158186727. The cubic root of 139717502 is about 518.8999204367.

The spelling of 139717502 in words is "one hundred thirty-nine million, seven hundred seventeen thousand, five hundred two".