10145312657 has 4 divisors (see below), whose sum is σ = 10153568820. Its totient is φ = 10137056496.

The previous prime is 10145312623. The next prime is 10145312663. The reversal of 10145312657 is 75621354101.

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 7520184961 + 2625127696 = 86719^2 + 51236^2 .

It is a cyclic number.

It is not a de Polignac number, because 10145312657 - 2¹² = 10145308561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10145312677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126238 + ... + 4128695.

It is an arithmetic number, because the mean of its divisors is an integer number (2538392205).

Almost surely, 2^10145312657 is an apocalyptic number.

It is an amenable number.

10145312657 is a deficient number, since it is larger than the sum of its proper divisors (8256163).

10145312657 is an equidigital number, since it uses as much as digits as its factorization.

10145312657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256162.

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 10145312657 its reverse (75621354101), we get a palindrome (85766666758).

The spelling of 10145312657 in words is "ten billion, one hundred forty-five million, three hundred twelve thousand, six hundred fifty-seven".