125532151 has 4 divisors (see below), whose sum is σ = 126435400. Its totient is φ = 124628904.

The previous prime is 125532133. The next prime is 125532161. The reversal of 125532151 is 151235521.

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

It is a cyclic number.

It is not a de Polignac number, because 125532151 - 2⁷ = 125532023 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 (125532161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451416 + ... + 451693.

It is an arithmetic number, because the mean of its divisors is an integer number (31608850).

Almost surely, 2^125532151 is an apocalyptic number.

125532151 is a deficient number, since it is larger than the sum of its proper divisors (903249).

125532151 is an equidigital number, since it uses as much as digits as its factorization.

125532151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903248.

The product of its digits is 1500, while the sum is 25.

The square root of 125532151 is about 11204.1131286684. The cubic root of 125532151 is about 500.7085301624.

Adding to 125532151 its reverse (151235521), we get a palindrome (276767672).

The spelling of 125532151 in words is "one hundred twenty-five million, five hundred thirty-two thousand, one hundred fifty-one".