1913295457 has 4 divisors (see below), whose sum is σ = 1996482240. Its totient is φ = 1830108676.

The previous prime is 1913295451. The next prime is 1913295491. The reversal of 1913295457 is 7545923191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1913295457 - 2¹¹ = 1913293409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913295451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41593357 + ... + 41593402.

It is an arithmetic number, because the mean of its divisors is an integer number (499120560).

Almost surely, 2^1913295457 is an apocalyptic number.

It is an amenable number.

1913295457 is a deficient number, since it is larger than the sum of its proper divisors (83186783).

1913295457 is an equidigital number, since it uses as much as digits as its factorization.

1913295457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83186782.

The product of its digits is 340200, while the sum is 46.

The square root of 1913295457 is about 43741.2329158656. The cubic root of 1913295457 is about 1241.4446086410. Note that the first 3 decimals are identical.

The spelling of 1913295457 in words is "one billion, nine hundred thirteen million, two hundred ninety-five thousand, four hundred fifty-seven".