139472475 has 12 divisors (see below), whose sum is σ = 230594616. Its totient is φ = 74385280.

The previous prime is 139472429. The next prime is 139472479. The reversal of 139472475 is 574274931.

It is not a de Polignac number, because 139472475 - 2⁹ = 139471963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139472479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 929742 + ... + 929891.

It is an arithmetic number, because the mean of its divisors is an integer number (19216218).

Almost surely, 2^139472475 is an apocalyptic number.

139472475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139472475 is a deficient number, since it is larger than the sum of its proper divisors (91122141).

139472475 is a wasteful number, since it uses less digits than its factorization.

139472475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859646 (or 1859641 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 139472475 is about 11809.8465273686. The cubic root of 139472475 is about 518.5964058751.

The spelling of 139472475 in words is "one hundred thirty-nine million, four hundred seventy-two thousand, four hundred seventy-five".