139678576 has 20 divisors (see below), whose sum is σ = 284871400. Its totient is φ = 66163392.

The previous prime is 139678571. The next prime is 139678601. The reversal of 139678576 is 675876931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139678571) 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, 229431 + ... + 230038.

It is an arithmetic number, because the mean of its divisors is an integer number (14243570).

Almost surely, 2^139678576 is an apocalyptic number.

139678576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139678576 is an abundant number, since it is smaller than the sum of its proper divisors (145192824).

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

139678576 is a wasteful number, since it uses less digits than its factorization.

139678576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459496 (or 459490 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 139678576 is about 11818.5691181293. The cubic root of 139678576 is about 518.8517265833.

The spelling of 139678576 in words is "one hundred thirty-nine million, six hundred seventy-eight thousand, five hundred seventy-six".