1540871003 has 12 divisors (see below), whose sum is σ = 1793125152. Its totient is φ = 1320243120.

The previous prime is 1540870997. The next prime is 1540871011. The reversal of 1540871003 is 3001780451.

It is not a de Polignac number, because 1540871003 - 2²⁶ = 1473762139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1540871603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185918 + ... + 194028.

It is an arithmetic number, because the mean of its divisors is an integer number (149427096).

Almost surely, 2^1540871003 is an apocalyptic number.

1540871003 is a deficient number, since it is larger than the sum of its proper divisors (252254149).

1540871003 is an equidigital number, since it uses as much as digits as its factorization.

1540871003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002 (or 11995 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1540871003 is about 39253.9297777942. The cubic root of 1540871003 is about 1155.0180223695.

The spelling of 1540871003 in words is "one billion, five hundred forty million, eight hundred seventy-one thousand, three".