1151131 has 8 divisors (see below), whose sum is σ = 1187424. Its totient is φ = 1115520.

The previous prime is 1151113. The next prime is 1151141. The reversal of 1151131 is 1311511.

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 1151131 - 2¹⁵ = 1118363 is a prime.

It is a super-2 number, since 2×1151131² = 2650205158322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151141) 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, 6810 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (148428).

2^1151131 is an apocalyptic number.

1151131 is a deficient number, since it is larger than the sum of its proper divisors (36293).

1151131 is a wasteful number, since it uses less digits than its factorization.

1151131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its digits is 15, while the sum is 13.

The square root of 1151131 is about 1072.9077313544. The cubic root of 1151131 is about 104.8032900605.

Adding to 1151131 its reverse (1311511), we get a palindrome (2462642).

The spelling of 1151131 in words is "one million, one hundred fifty-one thousand, one hundred thirty-one".