130233501 has 10 divisors (see below), whose sum is σ = 194546462. Its totient is φ = 86822280.

The previous prime is 130233497. The next prime is 130233529. The reversal of 130233501 is 105332031.

130233501 is a `hidden beast` number, since 130 + 2 + 33 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 50041476 = 8955^2 + 7074^2 .

It is not a de Polignac number, because 130233501 - 2² = 130233497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130233101) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 803830 + ... + 803991.

Almost surely, 2^130233501 is an apocalyptic number.

It is an amenable number.

130233501 is a deficient number, since it is larger than the sum of its proper divisors (64312961).

130233501 is an equidigital number, since it uses as much as digits as its factorization.

130233501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607833 (or 1607824 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 130233501 is about 11411.9893533073. The cubic root of 130233501 is about 506.8828201583.

Adding to 130233501 its reverse (105332031), we get a palindrome (235565532).

The spelling of 130233501 in words is "one hundred thirty million, two hundred thirty-three thousand, five hundred one".