3131001 has 8 divisors (see below), whose sum is σ = 4638560. Its totient is φ = 2087316.

The previous prime is 3130997. The next prime is 3131017. The reversal of 3131001 is 1001313.

It is not a de Polignac number, because 3131001 - 2² = 3130997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131021) 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, 57955 + ... + 58008.

It is an arithmetic number, because the mean of its divisors is an integer number (579820).

Almost surely, 2^3131001 is an apocalyptic number.

It is an amenable number.

3131001 is a deficient number, since it is larger than the sum of its proper divisors (1507559).

3131001 is a wasteful number, since it uses less digits than its factorization.

3131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115972 (or 115966 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 3131001 is about 1769.4634780068. The cubic root of 3131001 is about 146.2944112330.

Adding to 3131001 its reverse (1001313), we get a palindrome (4132314).

It can be divided in two parts, 313 and 1001, that multiplied together give a palindrome (313313).

The spelling of 3131001 in words is "three million, one hundred thirty-one thousand, one".