1131534061 has 8 divisors (see below), whose sum is σ = 1294966400. Its totient is φ = 968547888.

The previous prime is 1131534049. The next prime is 1131534073. The reversal of 1131534061 is 1604351311.

It is an interprime number because it is at equal distance from previous prime (1131534049) and next prime (1131534073).

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

It is not a de Polignac number, because 1131534061 - 2²¹ = 1129436909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131537061) 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, 106086 + ... + 116263.

It is an arithmetic number, because the mean of its divisors is an integer number (161870800).

Almost surely, 2^1131534061 is an apocalyptic number.

It is an amenable number.

1131534061 is a deficient number, since it is larger than the sum of its proper divisors (163432339).

1131534061 is an equidigital number, since it uses as much as digits as its factorization.

1131534061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223083.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1131534061 is about 33638.2826701959. The cubic root of 1131534061 is about 1042.0515657447.

Adding to 1131534061 its reverse (1604351311), we get a palindrome (2735885372).

The spelling of 1131534061 in words is "one billion, one hundred thirty-one million, five hundred thirty-four thousand, sixty-one".