1264131 has 18 divisors (see below), whose sum is σ = 2009748. Its totient is φ = 759360.

The previous prime is 1264129. The next prime is 1264177. The reversal of 1264131 is 1314621.

It is a happy number.

It is not a de Polignac number, because 1264131 - 2¹ = 1264129 is a prime.

It is a super-2 number, since 2×1264131² = 3196054370322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1264231) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11131 + ... + 11243.

2^1264131 is an apocalyptic number.

1264131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1264131 is a deficient number, since it is larger than the sum of its proper divisors (745617).

1264131 is a wasteful number, since it uses less digits than its factorization.

1264131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 127 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1264131 is about 1124.3358039305. The cubic root of 1264131 is about 108.1261386272.

Adding to 1264131 its reverse (1314621), we get a palindrome (2578752).

The spelling of 1264131 in words is "one million, two hundred sixty-four thousand, one hundred thirty-one".