125321151 has 8 divisors (see below), whose sum is σ = 172856880. Its totient is φ = 80666432.

The previous prime is 125321137. The next prime is 125321153. The reversal of 125321151 is 151123521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125321151 - 2⁶ = 125321087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125321153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720150 + ... + 720323.

It is an arithmetic number, because the mean of its divisors is an integer number (21607110).

Almost surely, 2^125321151 is an apocalyptic number.

125321151 is a deficient number, since it is larger than the sum of its proper divisors (47535729).

125321151 is a wasteful number, since it uses less digits than its factorization.

125321151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440505.

The product of its digits is 300, while the sum is 21.

The square root of 125321151 is about 11194.6929837312. The cubic root of 125321151 is about 500.4278351431.

Adding to 125321151 its reverse (151123521), we get a palindrome (276444672).

The spelling of 125321151 in words is "one hundred twenty-five million, three hundred twenty-one thousand, one hundred fifty-one".