1040051651 has 4 divisors (see below), whose sum is σ = 1085271312. Its totient is φ = 994831992.

The previous prime is 1040051629. The next prime is 1040051689. The reversal of 1040051651 is 1561500401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040051651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 45219637 = 1040051651 / (1 + 0 + 4 + 0 + 0 + 5 + 1 + 6 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040021651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22609796 + ... + 22609841.

It is an arithmetic number, because the mean of its divisors is an integer number (271317828).

Almost surely, 2^1040051651 is an apocalyptic number.

1040051651 is a deficient number, since it is larger than the sum of its proper divisors (45219661).

1040051651 is an equidigital number, since it uses as much as digits as its factorization.

1040051651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45219660.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1040051651 is about 32249.8317980110. The cubic root of 1040051651 is about 1013.1761762016.

The spelling of 1040051651 in words is "one billion, forty million, fifty-one thousand, six hundred fifty-one".