1147064919 has 64 divisors (see below), whose sum is σ = 2174376960. Its totient is φ = 517662720.

The previous prime is 1147064899. The next prime is 1147064929. The reversal of 1147064919 is 9194607411.

It is not a de Polignac number, because 1147064919 - 2⁵ = 1147064887 is a prime.

It is a super-2 number, since 2×1147064919² = 2631515856800953122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147064929) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39817 + ... + 62285.

It is an arithmetic number, because the mean of its divisors is an integer number (33974640).

Almost surely, 2^1147064919 is an apocalyptic number.

1147064919 is a deficient number, since it is larger than the sum of its proper divisors (1027312041).

1147064919 is a wasteful number, since it uses less digits than its factorization.

1147064919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1147064919 is about 33868.3468595679. The cubic root of 1147064919 is about 1046.7974738924.

The spelling of 1147064919 in words is "one billion, one hundred forty-seven million, sixty-four thousand, nine hundred nineteen".