1011254651 has 32 divisors (see below), whose sum is σ = 1187377920. Its totient is φ = 851558400.

The previous prime is 1011254641. The next prime is 1011254663. The reversal of 1011254651 is 1564521101.

It is not a de Polignac number, because 1011254651 - 2²² = 1007060347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011254651.

It is not an unprimeable number, because it can be changed into a prime (1011254641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3598631 + ... + 3598911.

It is an arithmetic number, because the mean of its divisors is an integer number (37105560).

Almost surely, 2^1011254651 is an apocalyptic number.

1011254651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011254651 is a deficient number, since it is larger than the sum of its proper divisors (176123269).

1011254651 is a wasteful number, since it uses less digits than its factorization.

1011254651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1011254651 is about 31800.2303608008. The cubic root of 1011254651 is about 1003.7375635482.

Adding to 1011254651 its reverse (1564521101), we get a palindrome (2575775752).

The spelling of 1011254651 in words is "one billion, eleven million, two hundred fifty-four thousand, six hundred fifty-one".