139119669 has 12 divisors (see below), whose sum is σ = 216408556. Its totient is φ = 85612032.

The previous prime is 139119613. The next prime is 139119689. The reversal of 139119669 is 966911931.

It can be written as a sum of positive squares in 2 ways, for example, as 89586225 + 49533444 = 9465^2 + 7038^2 .

It is not a de Polignac number, because 139119669 - 2²¹ = 137022517 is a prime.

It is a super-2 number, since 2×139119669² = 38708564605339122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139119689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 594412 + ... + 594645.

Almost surely, 2^139119669 is an apocalyptic number.

It is an amenable number.

139119669 is a deficient number, since it is larger than the sum of its proper divisors (77288887).

139119669 is a wasteful number, since it uses less digits than its factorization.

139119669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189076 (or 1189073 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 139119669 is about 11794.9001267497. The cubic root of 139119669 is about 518.1587605874.

The spelling of 139119669 in words is "one hundred thirty-nine million, one hundred nineteen thousand, six hundred sixty-nine".