139273975 has 6 divisors (see below), whose sum is σ = 172699760. Its totient is φ = 111419160.

The previous prime is 139273973. The next prime is 139273991. The reversal of 139273975 is 579372931.

It is not a de Polignac number, because 139273975 - 2¹ = 139273973 is a prime.

It is a super-2 number, since 2×139273975² = 38794480224601250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139273973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2785455 + ... + 2785504.

Almost surely, 2^139273975 is an apocalyptic number.

139273975 is a deficient number, since it is larger than the sum of its proper divisors (33425785).

139273975 is an equidigital number, since it uses as much as digits as its factorization.

139273975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570969 (or 5570964 counting only the distinct ones).

The product of its digits is 357210, while the sum is 46.

The square root of 139273975 is about 11801.4395308369. The cubic root of 139273975 is about 518.3502634940.

The spelling of 139273975 in words is "one hundred thirty-nine million, two hundred seventy-three thousand, nine hundred seventy-five".