1913534885 has 8 divisors (see below), whose sum is σ = 2300157216. Its totient is φ = 1528217680.

The previous prime is 1913534879. The next prime is 1913534891. The reversal of 1913534885 is 5884353191.

It is an interprime number because it is at equal distance from previous prime (1913534879) and next prime (1913534891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1913534885 - 2¹² = 1913530789 is a prime.

It is a super-2 number, since 2×1913534885² = 7323231512223926450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323051 + ... + 328920.

It is an arithmetic number, because the mean of its divisors is an integer number (287519652).

Almost surely, 2^1913534885 is an apocalyptic number.

It is an amenable number.

1913534885 is a deficient number, since it is larger than the sum of its proper divisors (386622331).

1913534885 is an equidigital number, since it uses as much as digits as its factorization.

1913534885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652563.

The product of its digits is 518400, while the sum is 47.

The square root of 1913534885 is about 43743.9696986910. The cubic root of 1913534885 is about 1241.4963908859.

The spelling of 1913534885 in words is "one billion, nine hundred thirteen million, five hundred thirty-four thousand, eight hundred eighty-five".