1147922131 has 2 divisors, whose sum is σ = 1147922132. Its totient is φ = 1147922130.

The previous prime is 1147922129. The next prime is 1147922143. The reversal of 1147922131 is 1312297411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1147922131 - 2¹ = 1147922129 is a prime.

It is a super-2 number, since 2×1147922131² = 2635450437679162322, which contains 22 as substring.

Together with 1147922129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1147922093 and 1147922102.

It is not a weakly prime, because it can be changed into another prime (1147922431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573961065 + 573961066.

It is an arithmetic number, because the mean of its divisors is an integer number (573961066).

Almost surely, 2^1147922131 is an apocalyptic number.

1147922131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147922131 is an equidigital number, since it uses as much as digits as its factorization.

1147922131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 1147922131 is about 33880.9995572740. Note that the first 3 decimals coincide. The cubic root of 1147922131 is about 1047.0581693733.

The spelling of 1147922131 in words is "one billion, one hundred forty-seven million, nine hundred twenty-two thousand, one hundred thirty-one".