1231648675 has 6 divisors (see below), whose sum is σ = 1527244388. Its totient is φ = 985318920.

The previous prime is 1231648603. The next prime is 1231648681. The reversal of 1231648675 is 5768461321.

It is not a de Polignac number, because 1231648675 - 2²⁹ = 694777763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 24632949 + ... + 24632998.

Almost surely, 2^1231648675 is an apocalyptic number.

1231648675 is a deficient number, since it is larger than the sum of its proper divisors (295595713).

1231648675 is an equidigital number, since it uses as much as digits as its factorization.

1231648675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49265957 (or 49265952 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 1231648675 is about 35094.8525427875. The cubic root of 1231648675 is about 1071.9197709854.

The spelling of 1231648675 in words is "one billion, two hundred thirty-one million, six hundred forty-eight thousand, six hundred seventy-five".