125311001 has 8 divisors (see below), whose sum is σ = 130252800. Its totient is φ = 120410640.

The previous prime is 125310989. The next prime is 125311007. The reversal of 125311001 is 100113521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125311001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125311007) 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, 4121 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (16281600).

Almost surely, 2^125311001 is an apocalyptic number.

It is an amenable number.

125311001 is a deficient number, since it is larger than the sum of its proper divisors (4941799).

125311001 is a wasteful number, since it uses less digits than its factorization.

125311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20719.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 125311001 is about 11194.2396347407. The cubic root of 125311001 is about 500.4143245755.

Adding to 125311001 its reverse (100113521), we get a palindrome (225424522).

The spelling of 125311001 in words is "one hundred twenty-five million, three hundred eleven thousand, one".