139280474 has 16 divisors (see below), whose sum is σ = 215036640. Its totient is φ = 67630320.

The previous prime is 139280459. The next prime is 139280501. The reversal of 139280474 is 474082931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684 + ... + 16904.

It is an arithmetic number, because the mean of its divisors is an integer number (13439790).

Almost surely, 2^139280474 is an apocalyptic number.

139280474 is a deficient number, since it is larger than the sum of its proper divisors (75756166).

139280474 is a wasteful number, since it uses less digits than its factorization.

139280474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14365.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 139280474 is about 11801.7148753899. The cubic root of 139280474 is about 518.3583260340.

The spelling of 139280474 in words is "one hundred thirty-nine million, two hundred eighty thousand, four hundred seventy-four".