1051631651 has 16 divisors (see below), whose sum is σ = 1210288128. Its totient is φ = 895104000.

The previous prime is 1051631639. The next prime is 1051631681. The reversal of 1051631651 is 1561361501.

1051631651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1051631651 - 2¹⁸ = 1051369507 is a prime.

It is a super-2 number, since 2×1051631651² = 2211858258769971602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051631621) 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, 1000076 + ... + 1001126.

It is an arithmetic number, because the mean of its divisors is an integer number (75643008).

Almost surely, 2^1051631651 is an apocalyptic number.

1051631651 is a deficient number, since it is larger than the sum of its proper divisors (158656477).

1051631651 is a wasteful number, since it uses less digits than its factorization.

1051631651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1051631651 is about 32428.8706402181. The cubic root of 1051631651 is about 1016.9225618451.

The spelling of 1051631651 in words is "one billion, fifty-one million, six hundred thirty-one thousand, six hundred fifty-one".