139474465 has 16 divisors (see below), whose sum is σ = 180560016. Its totient is φ = 102816000.

The previous prime is 139474453. The next prime is 139474483. The reversal of 139474465 is 564474931.

It can be written as a sum of positive squares in 8 ways, for example, as 6671889 + 132802576 = 2583^2 + 11524^2 .

It is not a de Polignac number, because 139474465 - 2⁹ = 139473953 is a prime.

Its product of digits (362880) is a multiple of the sum of its prime divisors (3780).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44035 + ... + 47095.

It is an arithmetic number, because the mean of its divisors is an integer number (11285001).

Almost surely, 2^139474465 is an apocalyptic number.

It is an amenable number.

139474465 is a deficient number, since it is larger than the sum of its proper divisors (41085551).

139474465 is a wasteful number, since it uses less digits than its factorization.

139474465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780.

The product of its digits is 362880, while the sum is 43.

The square root of 139474465 is about 11809.9307787980. The cubic root of 139474465 is about 518.5988723162.

The spelling of 139474465 in words is "one hundred thirty-nine million, four hundred seventy-four thousand, four hundred sixty-five".