231401501 has 8 divisors (see below), whose sum is σ = 246778560. Its totient is φ = 216220608.

The previous prime is 231401497. The next prime is 231401537. The reversal of 231401501 is 105104132.

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 231401501 - 2² = 231401497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 231401501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231401561) 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, 46601 + ... + 51326.

It is an arithmetic number, because the mean of its divisors is an integer number (30847320).

Almost surely, 2^231401501 is an apocalyptic number.

It is an amenable number.

231401501 is a deficient number, since it is larger than the sum of its proper divisors (15377059).

231401501 is a wasteful number, since it uses less digits than its factorization.

231401501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98083.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 231401501 is about 15211.8868323427. The cubic root of 231401501 is about 613.9345254802.

Adding to 231401501 its reverse (105104132), we get a palindrome (336505633).

The spelling of 231401501 in words is "two hundred thirty-one million, four hundred one thousand, five hundred one".