231147401 has 8 divisors (see below), whose sum is σ = 241736064. Its totient is φ = 220603680.

The previous prime is 231147391. The next prime is 231147437. The reversal of 231147401 is 104741132.

It is a happy number.

231147401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231147401 - 2¹⁸ = 230885257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231147461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485 + ... + 21506.

It is an arithmetic number, because the mean of its divisors is an integer number (30217008).

Almost surely, 2^231147401 is an apocalyptic number.

It is an amenable number.

231147401 is a deficient number, since it is larger than the sum of its proper divisors (10588663).

231147401 is a wasteful number, since it uses less digits than its factorization.

231147401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22471.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 231147401 is about 15203.5325171488. The cubic root of 231147401 is about 613.7097244336.

Adding to 231147401 its reverse (104741132), we get a palindrome (335888533).

The spelling of 231147401 in words is "two hundred thirty-one million, one hundred forty-seven thousand, four hundred one".