148991023 has 2 divisors, whose sum is σ = 148991024. Its totient is φ = 148991022.

The previous prime is 148990999. The next prime is 148991039. The reversal of 148991023 is 320199841.

148991023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148991023 - 2⁹ = 148990511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148991083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74495511 + 74495512.

It is an arithmetic number, because the mean of its divisors is an integer number (74495512).

Almost surely, 2^148991023 is an apocalyptic number.

148991023 is a deficient number, since it is larger than the sum of its proper divisors (1).

148991023 is an equidigital number, since it uses as much as digits as its factorization.

148991023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 148991023 is about 12206.1878979475. The cubic root of 148991023 is about 530.1352722236.

The spelling of 148991023 in words is "one hundred forty-eight million, nine hundred ninety-one thousand, twenty-three".