1164740261 has 32 divisors (see below), whose sum is σ = 1332495360. Its totient is φ = 1011453696.

The previous prime is 1164740251. The next prime is 1164740327. The reversal of 1164740261 is 1620474611.

It is a cyclic number.

It is not a de Polignac number, because 1164740261 - 2⁶ = 1164740197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164740221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2315336 + ... + 2315838.

It is an arithmetic number, because the mean of its divisors is an integer number (41640480).

Almost surely, 2^1164740261 is an apocalyptic number.

It is an amenable number.

1164740261 is a deficient number, since it is larger than the sum of its proper divisors (167755099).

1164740261 is a wasteful number, since it uses less digits than its factorization.

1164740261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1164740261 is about 34128.2912112517. The cubic root of 1164740261 is about 1052.1468579766.

The spelling of 1164740261 in words is "one billion, one hundred sixty-four million, seven hundred forty thousand, two hundred sixty-one".