139262902 has 4 divisors (see below), whose sum is σ = 208894356. Its totient is φ = 69631450.

The previous prime is 139262899. The next prime is 139262923. The reversal of 139262902 is 209262931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34815724 + ... + 34815727.

It is an arithmetic number, because the mean of its divisors is an integer number (52223589).

Almost surely, 2^139262902 is an apocalyptic number.

139262902 is a deficient number, since it is larger than the sum of its proper divisors (69631454).

139262902 is an equidigital number, since it uses as much as digits as its factorization.

139262902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69631453.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 139262902 is about 11800.9703838286. The cubic root of 139262902 is about 518.3365259560.

The spelling of 139262902 in words is "one hundred thirty-nine million, two hundred sixty-two thousand, nine hundred two".