125400407 has 6 divisors (see below), whose sum is σ = 137836944. Its totient is φ = 114000260.

The previous prime is 125400403. The next prime is 125400409. The reversal of 125400407 is 704004521.

It is not a de Polignac number, because 125400407 - 2² = 125400403 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 (125400403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 518063 + ... + 518304.

It is an arithmetic number, because the mean of its divisors is an integer number (22972824).

Almost surely, 2^125400407 is an apocalyptic number.

125400407 is a deficient number, since it is larger than the sum of its proper divisors (12436537).

125400407 is a wasteful number, since it uses less digits than its factorization.

125400407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036389 (or 1036378 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 125400407 is about 11198.2323158613. The cubic root of 125400407 is about 500.5333069651.

Adding to 125400407 its reverse (704004521), we get a palindrome (829404928).

The spelling of 125400407 in words is "one hundred twenty-five million, four hundred thousand, four hundred seven".