402130651 has 4 divisors (see below), whose sum is σ = 433063792. Its totient is φ = 371197512.

The previous prime is 402130639. The next prime is 402130661. The reversal of 402130651 is 156031204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402130651 - 2⁷ = 402130523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402130661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15466551 + ... + 15466576.

It is an arithmetic number, because the mean of its divisors is an integer number (108265948).

Almost surely, 2^402130651 is an apocalyptic number.

402130651 is a deficient number, since it is larger than the sum of its proper divisors (30933141).

402130651 is a wasteful number, since it uses less digits than its factorization.

402130651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30933140.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 402130651 is about 20053.1955308873. The cubic root of 402130651 is about 738.1122146574.

Adding to 402130651 its reverse (156031204), we get a palindrome (558161855).

The spelling of 402130651 in words is "four hundred two million, one hundred thirty thousand, six hundred fifty-one".