139974075 has 36 divisors (see below), whose sum is σ = 260005928. Its totient is φ = 74649600.

The previous prime is 139974059. The next prime is 139974091. The reversal of 139974075 is 570479931.

It is an interprime number because it is at equal distance from previous prime (139974059) and next prime (139974091).

It is not a de Polignac number, because 139974075 - 2⁴ = 139974059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139974075.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5446 + ... + 17595.

Almost surely, 2^139974075 is an apocalyptic number.

139974075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139974075 is a deficient number, since it is larger than the sum of its proper divisors (120031853).

139974075 is an equidigital number, since it uses as much as digits as its factorization.

139974075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23066 (or 23049 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 139974075 is about 11831.0639842746. The cubic root of 139974075 is about 519.2173569185.

The spelling of 139974075 in words is "one hundred thirty-nine million, nine hundred seventy-four thousand, seventy-five".