125120413 has 24 divisors (see below), whose sum is σ = 143783640. Its totient is φ = 108662400.

The previous prime is 125120399. The next prime is 125120419. The reversal of 125120413 is 314021521.

It can be written as a sum of positive squares in 4 ways, for example, as 17749369 + 107371044 = 4213^2 + 10362^2 .

It is not a de Polignac number, because 125120413 - 2⁵ = 125120381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125120419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 635031 + ... + 635227.

It is an arithmetic number, because the mean of its divisors is an integer number (5990985).

Almost surely, 2^125120413 is an apocalyptic number.

It is an amenable number.

125120413 is a deficient number, since it is larger than the sum of its proper divisors (18663227).

125120413 is a wasteful number, since it uses less digits than its factorization.

125120413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 125120413 is about 11185.7236243347. The cubic root of 125120413 is about 500.1604991412.

Adding to 125120413 its reverse (314021521), we get a palindrome (439141934).

The spelling of 125120413 in words is "one hundred twenty-five million, one hundred twenty thousand, four hundred thirteen".