1400123136165 has 24 divisors (see below), whose sum is σ = 2425775473440. Its totient is φ = 689291388864.

The previous prime is 1400123136157. The next prime is 1400123136169. The reversal of 1400123136165 is 5616313210041.

It is a happy number.

It is not a de Polignac number, because 1400123136165 - 2³ = 1400123136157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400123136169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276155875 + ... + 276160944.

It is an arithmetic number, because the mean of its divisors is an integer number (101073978060).

Almost surely, 2^{1400123136165} is an apocalyptic number.

1400123136165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400123136165 is a deficient number, since it is larger than the sum of its proper divisors (1025652337275).

1400123136165 is a wasteful number, since it uses less digits than its factorization.

1400123136165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552316853 (or 552316840 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 1400123136165 in words is "one trillion, four hundred billion, one hundred twenty-three million, one hundred thirty-six thousand, one hundred sixty-five".