623131001 has 8 divisors (see below), whose sum is σ = 626029824. Its totient is φ = 620238960.

The previous prime is 623130983. The next prime is 623131009. The reversal of 623131001 is 100131326.

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-623131001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623131009) 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, 281240 + ... + 283446.

It is an arithmetic number, because the mean of its divisors is an integer number (78253728).

Almost surely, 2^623131001 is an apocalyptic number.

It is an amenable number.

623131001 is a deficient number, since it is larger than the sum of its proper divisors (2898823).

623131001 is a wasteful number, since it uses less digits than its factorization.

623131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 623131001 is about 24962.5920328799. The cubic root of 623131001 is about 854.1348708445.

Adding to 623131001 its reverse (100131326), we get a palindrome (723262327).

The spelling of 623131001 in words is "six hundred twenty-three million, one hundred thirty-one thousand, one".