1040156451 has 16 divisors (see below), whose sum is σ = 1542604800. Its totient is φ = 692703144.

The previous prime is 1040156437. The next prime is 1040156519. The reversal of 1040156451 is 1546510401.

1040156451 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 15 + 645 + 1 = 666.

It is not a de Polignac number, because 1040156451 - 2¹⁸ = 1039894307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1040156851) 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, 6190 + ... + 46028.

It is an arithmetic number, because the mean of its divisors is an integer number (96412800).

Almost surely, 2^1040156451 is an apocalyptic number.

1040156451 is a deficient number, since it is larger than the sum of its proper divisors (502448349).

1040156451 is an equidigital number, since it uses as much as digits as its factorization.

1040156451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40815 (or 40809 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1040156451 is about 32251.4565717581. The cubic root of 1040156451 is about 1013.2102056965.

Adding to 1040156451 its reverse (1546510401), we get a palindrome (2586666852).

The spelling of 1040156451 in words is "one billion, forty million, one hundred fifty-six thousand, four hundred fifty-one".