1145131 has 8 divisors (see below), whose sum is σ = 1254960. Its totient is φ = 1038432.

The previous prime is 1145129. The next prime is 1145141. The reversal of 1145131 is 1315411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145131 - 2¹ = 1145129 is a prime.

It is a super-2 number, since 2×1145131² = 2622650014322, which contains 22 as substring.

It is a Duffinian number.

1145131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1145141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (156870).

2^1145131 is an apocalyptic number.

1145131 is a deficient number, since it is larger than the sum of its proper divisors (109829).

1145131 is a wasteful number, since it uses less digits than its factorization.

1145131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565.

The product of its digits is 60, while the sum is 16.

The square root of 1145131 is about 1070.1079384810. The cubic root of 1145131 is about 104.6208852661.

The spelling of 1145131 in words is "one million, one hundred forty-five thousand, one hundred thirty-one".