148323231 has 20 divisors (see below), whose sum is σ = 253222992. Its totient is φ = 84755808.

The previous prime is 148323191. The next prime is 148323239. The reversal of 148323231 is 132323841.

It is not a de Polignac number, because 148323231 - 2²¹ = 146226079 is a prime.

It is a super-2 number, since 2×148323231² = 43999561708558722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 148323195 and 148323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148323239) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130230 + ... + 131363.

Almost surely, 2^148323231 is an apocalyptic number.

148323231 is a deficient number, since it is larger than the sum of its proper divisors (104899761).

148323231 is an equidigital number, since it uses as much as digits as its factorization.

148323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261612 (or 261603 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 148323231 is about 12178.8025273423. The cubic root of 148323231 is about 529.3420469566.

The spelling of 148323231 in words is "one hundred forty-eight million, three hundred twenty-three thousand, two hundred thirty-one".