125149874237 has 4 divisors (see below), whose sum is σ = 128202310236. Its totient is φ = 122097438240.

The previous prime is 125149874159. The next prime is 125149874279. The reversal of 125149874237 is 732478941521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5526584281 + 119623289956 = 74341^2 + 345866^2 .

It is a cyclic number.

It is not a de Polignac number, because 125149874237 - 2²⁰ = 125148825661 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 (125149874737) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1526217938 + ... + 1526218019.

It is an arithmetic number, because the mean of its divisors is an integer number (32050577559).

Almost surely, 2^125149874237 is an apocalyptic number.

It is an amenable number.

125149874237 is a deficient number, since it is larger than the sum of its proper divisors (3052435999).

125149874237 is an equidigital number, since it uses as much as digits as its factorization.

125149874237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052435998.

The product of its digits is 3386880, while the sum is 53.

The spelling of 125149874237 in words is "one hundred twenty-five billion, one hundred forty-nine million, eight hundred seventy-four thousand, two hundred thirty-seven".