1131664147 has 4 divisors (see below), whose sum is σ = 1180866960. Its totient is φ = 1082461336.

The previous prime is 1131664139. The next prime is 1131664159. The reversal of 1131664147 is 7414661311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7414661311 = 1361 ⋅5447951.

It is a cyclic number.

It is not a de Polignac number, because 1131664147 - 2³ = 1131664139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131614147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24601372 + ... + 24601417.

It is an arithmetic number, because the mean of its divisors is an integer number (295216740).

Almost surely, 2^1131664147 is an apocalyptic number.

1131664147 is a deficient number, since it is larger than the sum of its proper divisors (49202813).

1131664147 is an equidigital number, since it uses as much as digits as its factorization.

1131664147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49202812.

The product of its digits is 12096, while the sum is 34.

The square root of 1131664147 is about 33640.2162151197. The cubic root of 1131664147 is about 1042.0914971176.

The spelling of 1131664147 in words is "one billion, one hundred thirty-one million, six hundred sixty-four thousand, one hundred forty-seven".