1540025163 has 16 divisors (see below), whose sum is σ = 2285301760. Its totient is φ = 1024981128.

The previous prime is 1540025153. The next prime is 1540025197. The reversal of 1540025163 is 3615200451.

1540025163 is a `hidden beast` number, since 1 + 5 + 400 + 251 + 6 + 3 = 666.

It is not a de Polignac number, because 1540025163 - 2⁴ = 1540025147 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540025143) 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 15 ways as a sum of consecutive naturals, for example, 30595 + ... + 63372.

It is an arithmetic number, because the mean of its divisors is an integer number (142831360).

Almost surely, 2^1540025163 is an apocalyptic number.

1540025163 is a deficient number, since it is larger than the sum of its proper divisors (745276597).

1540025163 is an equidigital number, since it uses as much as digits as its factorization.

1540025163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94583 (or 94577 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1540025163 is about 39243.1543456945. The cubic root of 1540025163 is about 1154.8066399199.

The spelling of 1540025163 in words is "one billion, five hundred forty million, twenty-five thousand, one hundred sixty-three".