231545403415415 has 4 divisors (see below), whose sum is σ = 277854484098504. Its totient is φ = 185236322732328.

The previous prime is 231545403415357. The next prime is 231545403415457. The reversal of 231545403415415 is 514514304545132.

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

It is a cyclic number.

It is not a de Polignac number, because 231545403415415 - 2⁶ = 231545403415351 is a prime.

It is a super-2 number, since 2×231545403415415² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231545403415415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23154540341537 + ... + 23154540341546.

It is an arithmetic number, because the mean of its divisors is an integer number (69463621024626).

Almost surely, 2^{231545403415415} is an apocalyptic number.

231545403415415 is a deficient number, since it is larger than the sum of its proper divisors (46309080683089).

231545403415415 is an equidigital number, since it uses as much as digits as its factorization.

231545403415415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46309080683088.

The product of its (nonzero) digits is 2880000, while the sum is 47.

The spelling of 231545403415415 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred three million, four hundred fifteen thousand, four hundred fifteen".