139774746 has 16 divisors (see below), whose sum is σ = 279741600. Its totient is φ = 46559568.

The previous prime is 139774721. The next prime is 139774763. The reversal of 139774746 is 647477931.

It is a junction number, because it is equal to n+sod(n) for n = 139774695 and 139774704.

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, 2520 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (17483850).

Almost surely, 2^139774746 is an apocalyptic number.

139774746 is an abundant number, since it is smaller than the sum of its proper divisors (139966854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139774746 is a wasteful number, since it uses less digits than its factorization.

139774746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013.

The product of its digits is 889056, while the sum is 48.

The square root of 139774746 is about 11822.6370154885. The cubic root of 139774746 is about 518.9707773464.

The spelling of 139774746 in words is "one hundred thirty-nine million, seven hundred seventy-four thousand, seven hundred forty-six".