1013765403 has 32 divisors (see below), whose sum is σ = 1655410176. Its totient is φ = 538633728.

The previous prime is 1013765399. The next prime is 1013765407. The reversal of 1013765403 is 3045673101.

It is an interprime number because it is at equal distance from previous prime (1013765399) and next prime (1013765407).

It is not a de Polignac number, because 1013765403 - 2² = 1013765399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013765407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12525 + ... + 46737.

It is an arithmetic number, because the mean of its divisors is an integer number (51731568).

Almost surely, 2^1013765403 is an apocalyptic number.

1013765403 is a deficient number, since it is larger than the sum of its proper divisors (641644773).

1013765403 is a wasteful number, since it uses less digits than its factorization.

1013765403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34323.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1013765403 is about 31839.6828344756. The cubic root of 1013765403 is about 1004.5675731779.

The spelling of 1013765403 in words is "one billion, thirteen million, seven hundred sixty-five thousand, four hundred three".