1147901493 has 4 divisors (see below), whose sum is σ = 1530535328. Its totient is φ = 765267660.

The previous prime is 1147901483. The next prime is 1147901527. The reversal of 1147901493 is 3941097411.

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 not a de Polignac number, because 1147901493 - 2¹² = 1147897397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147901413) 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, 191316913 + ... + 191316918.

It is an arithmetic number, because the mean of its divisors is an integer number (382633832).

Almost surely, 2^1147901493 is an apocalyptic number.

It is an amenable number.

1147901493 is a deficient number, since it is larger than the sum of its proper divisors (382633835).

1147901493 is an equidigital number, since it uses as much as digits as its factorization.

1147901493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382633834.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1147901493 is about 33880.6949899201. The cubic root of 1147901493 is about 1047.0518944657.

The spelling of 1147901493 in words is "one billion, one hundred forty-seven million, nine hundred one thousand, four hundred ninety-three".