1613264457 has 16 divisors (see below), whose sum is σ = 2458874880. Its totient is φ = 921652752.

The previous prime is 1613264381. The next prime is 1613264489. The reversal of 1613264457 is 7544623161.

It is a happy number.

It is not a de Polignac number, because 1613264457 - 2⁷ = 1613264329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1613264057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153658 + ... + 163820.

It is an arithmetic number, because the mean of its divisors is an integer number (153679680).

Almost surely, 2^1613264457 is an apocalyptic number.

It is an amenable number.

1613264457 is a deficient number, since it is larger than the sum of its proper divisors (845610423).

1613264457 is a wasteful number, since it uses less digits than its factorization.

1613264457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732.

The product of its digits is 120960, while the sum is 39.

The square root of 1613264457 is about 40165.4634854373. The cubic root of 1613264457 is about 1172.8303300777.

The spelling of 1613264457 in words is "one billion, six hundred thirteen million, two hundred sixty-four thousand, four hundred fifty-seven".