1045400051 has 4 divisors (see below), whose sum is σ = 1045705392. Its totient is φ = 1045094712.

The previous prime is 1045400039. The next prime is 1045400053. The reversal of 1045400051 is 1500045401.

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 1045400051 - 2⁶ = 1045399987 is a prime.

It is a super-2 number, since 2×1045400051² = 2185722533261605202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045399996 and 1045400032.

It is not an unprimeable number, because it can be changed into a prime (1045400053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147476 + ... + 154401.

It is an arithmetic number, because the mean of its divisors is an integer number (261426348).

Almost surely, 2^1045400051 is an apocalyptic number.

1045400051 is a deficient number, since it is larger than the sum of its proper divisors (305341).

1045400051 is an equidigital number, since it uses as much as digits as its factorization.

1045400051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305340.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1045400051 is about 32332.6468294818. The cubic root of 1045400051 is about 1014.9099391890.

Adding to 1045400051 its reverse (1500045401), we get a palindrome (2545445452).

The spelling of 1045400051 in words is "one billion, forty-five million, four hundred thousand, fifty-one".