3100400510645 has 4 divisors (see below), whose sum is σ = 3720480612780. Its totient is φ = 2480320408512.

The previous prime is 3100400510587. The next prime is 3100400510681. The reversal of 3100400510645 is 5460150040013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1102548300529 + 1997852210116 = 1050023^2 + 1413454^2 .

It is a cyclic number.

It is not a de Polignac number, because 3100400510645 - 2²² = 3100396316341 is a prime.

It is a super-2 number, since 2×3100400510645² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310040051060 + ... + 310040051069.

It is an arithmetic number, because the mean of its divisors is an integer number (930120153195).

Almost surely, 2^{3100400510645} is an apocalyptic number.

It is an amenable number.

3100400510645 is a deficient number, since it is larger than the sum of its proper divisors (620080102135).

3100400510645 is an equidigital number, since it uses as much as digits as its factorization.

3100400510645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620080102134.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 3100400510645 its reverse (5460150040013), we get a palindrome (8560550550658).

The spelling of 3100400510645 in words is "three trillion, one hundred billion, four hundred million, five hundred ten thousand, six hundred forty-five".