139490753474 has 8 divisors (see below), whose sum is σ = 210320255820. Its totient is φ = 69384001536.

The previous prime is 139490753461. The next prime is 139490753513. The reversal of 139490753474 is 474357094931.

It can be written as a sum of positive squares in 2 ways, for example, as 133645080625 + 5845672849 = 365575^2 + 76457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180687119 + ... + 180687890.

Almost surely, 2^139490753474 is an apocalyptic number.

139490753474 is a deficient number, since it is larger than the sum of its proper divisors (70829502346).

139490753474 is a wasteful number, since it uses less digits than its factorization.

139490753474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361375204.

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 139490753474 in words is "one hundred thirty-nine billion, four hundred ninety million, seven hundred fifty-three thousand, four hundred seventy-four".