1161264 has 40 divisors (see below), whose sum is σ = 3232432. Its totient is φ = 357120.

The previous prime is 1161263. The next prime is 1161269. The reversal of 1161264 is 4621611.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1161264.

It is not an unprimeable number, because it can be changed into a prime (1161263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 1554.

2^1161264 is an apocalyptic number.

It is an amenable number.

1161264 is an abundant number, since it is smaller than the sum of its proper divisors (2071168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161264 is a wasteful number, since it uses less digits than its factorization.

1161264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1879 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1161264 is about 1077.6195989309. The cubic root of 1161264 is about 105.1099075910.

Adding to 1161264 its reverse (4621611), we get a palindrome (5782875).

The spelling of 1161264 in words is "one million, one hundred sixty-one thousand, two hundred sixty-four".