1630137651 has 16 divisors (see below), whose sum is σ = 2192601600. Its totient is φ = 1077241248.

The previous prime is 1630137631. The next prime is 1630137659. The reversal of 1630137651 is 1567310361.

It is a happy number.

1630137651 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1630137651 - 2²³ = 1621749043 is a prime.

It is a super-2 number, since 2×1630137651² = 5314697522415595602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1630137659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297105 + ... + 302541.

It is an arithmetic number, because the mean of its divisors is an integer number (137037600).

Almost surely, 2^1630137651 is an apocalyptic number.

1630137651 is a deficient number, since it is larger than the sum of its proper divisors (562463949).

1630137651 is a wasteful number, since it uses less digits than its factorization.

1630137651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 1630137651 is about 40374.9631702618. The cubic root of 1630137651 is about 1176.9050493100.

The spelling of 1630137651 in words is "one billion, six hundred thirty million, one hundred thirty-seven thousand, six hundred fifty-one".