139514901842 has 4 divisors (see below), whose sum is σ = 209272352766. Its totient is φ = 69757450920.

The previous prime is 139514901763. The next prime is 139514901893. The reversal of 139514901842 is 248109415931.

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

It can be written as a sum of positive squares in only one way, i.e., 87161343361 + 52353558481 = 295231^2 + 228809^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34878725459 + ... + 34878725462.

Almost surely, 2^139514901842 is an apocalyptic number.

139514901842 is a deficient number, since it is larger than the sum of its proper divisors (69757450924).

139514901842 is an equidigital number, since it uses as much as digits as its factorization.

139514901842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69757450923.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 139514901842 in words is "one hundred thirty-nine billion, five hundred fourteen million, nine hundred one thousand, eight hundred forty-two".