231577401 has 8 divisors (see below), whose sum is σ = 336839904. Its totient is φ = 140349920.

The previous prime is 231577399. The next prime is 231577421. The reversal of 231577401 is 104775132.

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

It is a cyclic number.

It is not a de Polignac number, because 231577401 - 2¹ = 231577399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231577421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508716 + ... + 3508781.

It is an arithmetic number, because the mean of its divisors is an integer number (42104988).

Almost surely, 2^231577401 is an apocalyptic number.

It is an amenable number.

231577401 is a deficient number, since it is larger than the sum of its proper divisors (105262503).

231577401 is a wasteful number, since it uses less digits than its factorization.

231577401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017511.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 231577401 is about 15217.6673968122. The cubic root of 231577401 is about 614.0900469886.

The spelling of 231577401 in words is "two hundred thirty-one million, five hundred seventy-seven thousand, four hundred one".