139857301 has 6 divisors (see below), whose sum is σ = 142548770. Its totient is φ = 137215728.

The previous prime is 139857293. The next prime is 139857307. The reversal of 139857301 is 103758931.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 27815076 + 112042225 = 5274^2 + 10585^2 .

It is not a de Polignac number, because 139857301 - 2³ = 139857293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139857307) 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, 22086 + ... + 27703.

Almost surely, 2^139857301 is an apocalyptic number.

139857301 is the 7480-th centered pentagonal number.

It is an amenable number.

139857301 is a deficient number, since it is larger than the sum of its proper divisors (2691469).

139857301 is an frugal number, since it uses more digits than its factorization.

139857301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49895 (or 49842 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 139857301 is about 11826.1278954694. The cubic root of 139857301 is about 519.0729302785.

The spelling of 139857301 in words is "one hundred thirty-nine million, eight hundred fifty-seven thousand, three hundred one".