130621701 has 24 divisors (see below), whose sum is σ = 203049504. Its totient is φ = 74474400.

The previous prime is 130621663. The next prime is 130621703. The reversal of 130621701 is 107126031.

It is not a de Polignac number, because 130621701 - 2⁹ = 130621189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130621703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99751 + ... + 101051.

It is an arithmetic number, because the mean of its divisors is an integer number (8460396).

Almost surely, 2^130621701 is an apocalyptic number.

It is an amenable number.

130621701 is a deficient number, since it is larger than the sum of its proper divisors (72427803).

130621701 is a wasteful number, since it uses less digits than its factorization.

130621701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 130621701 is about 11428.9851255481. The cubic root of 130621701 is about 507.3859593143.

Adding to 130621701 its reverse (107126031), we get a palindrome (237747732).

The spelling of 130621701 in words is "one hundred thirty million, six hundred twenty-one thousand, seven hundred one".