139402174 has 8 divisors (see below), whose sum is σ = 209193120. Its totient is φ = 69671136.

The previous prime is 139402049. The next prime is 139402177. The reversal of 139402174 is 471204931.

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

It is a super-2 number, since 2×139402174² = 38865932231852552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139402177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8619 + ... + 18790.

It is an arithmetic number, because the mean of its divisors is an integer number (26149140).

Almost surely, 2^139402174 is an apocalyptic number.

139402174 is a deficient number, since it is larger than the sum of its proper divisors (69790946).

139402174 is a wasteful number, since it uses less digits than its factorization.

139402174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29954.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 139402174 is about 11806.8697799205. The cubic root of 139402174 is about 518.5092585170.

The spelling of 139402174 in words is "one hundred thirty-nine million, four hundred two thousand, one hundred seventy-four".