125132215 has 32 divisors (see below), whose sum is σ = 167247360. Its totient is φ = 89299584.

The previous prime is 125132209. The next prime is 125132221. The reversal of 125132215 is 512231521.

It is an interprime number because it is at equal distance from previous prime (125132209) and next prime (125132221).

It is a cyclic number.

It is not a de Polignac number, because 125132215 - 2¹⁷ = 125001143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256702 + ... + 257188.

It is an arithmetic number, because the mean of its divisors is an integer number (5226480).

Almost surely, 2^125132215 is an apocalyptic number.

125132215 is a deficient number, since it is larger than the sum of its proper divisors (42115145).

125132215 is a wasteful number, since it uses less digits than its factorization.

125132215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its digits is 600, while the sum is 22.

The square root of 125132215 is about 11186.2511593474. The cubic root of 125132215 is about 500.1762245492.

Adding to 125132215 its reverse (512231521), we get a palindrome (637363736).

The spelling of 125132215 in words is "one hundred twenty-five million, one hundred thirty-two thousand, two hundred fifteen".