1491407113 has 4 divisors (see below), whose sum is σ = 1704465280. Its totient is φ = 1278348948.

The previous prime is 1491407089. The next prime is 1491407119. The reversal of 1491407113 is 3117041941.

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 1491407113 - 2⁵ = 1491407081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1491407119) 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, 106529073 + ... + 106529086.

It is an arithmetic number, because the mean of its divisors is an integer number (426116320).

Almost surely, 2^1491407113 is an apocalyptic number.

It is an amenable number.

1491407113 is a deficient number, since it is larger than the sum of its proper divisors (213058167).

1491407113 is an equidigital number, since it uses as much as digits as its factorization.

1491407113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213058166.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1491407113 is about 38618.7404377719. The cubic root of 1491407113 is about 1142.5241885431.

The spelling of 1491407113 in words is "one billion, four hundred ninety-one million, four hundred seven thousand, one hundred thirteen".