1913147506 has 16 divisors (see below), whose sum is σ = 3022961760. Its totient is φ = 905567040.

The previous prime is 1913147459. The next prime is 1913147527. The reversal of 1913147506 is 6057413191.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36586 + ... + 71866.

It is an arithmetic number, because the mean of its divisors is an integer number (188935110).

Almost surely, 2^1913147506 is an apocalyptic number.

1913147506 is a deficient number, since it is larger than the sum of its proper divisors (1109814254).

1913147506 is a wasteful number, since it uses less digits than its factorization.

1913147506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36729.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1913147506 is about 43739.5416756966. The cubic root of 1913147506 is about 1241.4126084072.

The spelling of 1913147506 in words is "one billion, nine hundred thirteen million, one hundred forty-seven thousand, five hundred six".