1148322631 has 8 divisors (see below), whose sum is σ = 1175585904. Its totient is φ = 1121371200.

The previous prime is 1148322607. The next prime is 1148322709. The reversal of 1148322631 is 1362238411.

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 1148322631 - 2⁷ = 1148322503 is a prime.

It is a super-2 number, since 2×1148322631² = 2637289729733524322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1148322593 and 1148322602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148322601) 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, 70501 + ... + 85246.

It is an arithmetic number, because the mean of its divisors is an integer number (146948238).

Almost surely, 2^1148322631 is an apocalyptic number.

1148322631 is a deficient number, since it is larger than the sum of its proper divisors (27263273).

1148322631 is a wasteful number, since it uses less digits than its factorization.

1148322631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155921.

The product of its digits is 6912, while the sum is 31.

The square root of 1148322631 is about 33886.9094341753. The cubic root of 1148322631 is about 1047.1799250297.

The spelling of 1148322631 in words is "one billion, one hundred forty-eight million, three hundred twenty-two thousand, six hundred thirty-one".