125125401 has 8 divisors (see below), whose sum is σ = 172586880. Its totient is φ = 80540432.

The previous prime is 125125391. The next prime is 125125433. The reversal of 125125401 is 104521521.

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 125125401 - 2⁵ = 125125369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125125001) 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, 719025 + ... + 719198.

It is an arithmetic number, because the mean of its divisors is an integer number (21573360).

Almost surely, 2^125125401 is an apocalyptic number.

It is an amenable number.

125125401 is a deficient number, since it is larger than the sum of its proper divisors (47461479).

125125401 is a wasteful number, since it uses less digits than its factorization.

125125401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438255.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 125125401 is about 11185.9465848895. The cubic root of 125125401 is about 500.1671454519.

Adding to 125125401 its reverse (104521521), we get a palindrome (229646922).

The spelling of 125125401 in words is "one hundred twenty-five million, one hundred twenty-five thousand, four hundred one".