231513452401555 has 8 divisors (see below), whose sum is σ = 277824278974032. Its totient is φ = 185205337859808.

The previous prime is 231513452401519. The next prime is 231513452401589. The reversal of 231513452401555 is 555104254315132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231513452401555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677819872 + ... + 678161341.

It is an arithmetic number, because the mean of its divisors is an integer number (34728034871754).

Almost surely, 2^{231513452401555} is an apocalyptic number.

231513452401555 is a deficient number, since it is larger than the sum of its proper divisors (46310826572477).

231513452401555 is a wasteful number, since it uses less digits than its factorization.

231513452401555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356015365.

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 231513452401555 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty-two million, four hundred one thousand, five hundred fifty-five".