139494476 has 24 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 63222800.

The previous prime is 139494473. The next prime is 139494479. The reversal of 139494476 is 674494931.

It is an interprime number because it is at equal distance from previous prime (139494473) and next prime (139494479).

It is a self number, because there is not a number n which added to its sum of digits gives 139494476.

It is not an unprimeable number, because it can be changed into a prime (139494473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11381 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (11128320).

Almost surely, 2^139494476 is an apocalyptic number.

It is an amenable number.

139494476 is a deficient number, since it is larger than the sum of its proper divisors (127585204).

139494476 is a wasteful number, since it uses less digits than its factorization.

139494476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205 (or 9203 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 139494476 is about 11810.7779591355. Note that the first 3 decimals coincide. The cubic root of 139494476 is about 518.6236729987.

The spelling of 139494476 in words is "one hundred thirty-nine million, four hundred ninety-four thousand, four hundred seventy-six".