149345023 has 2 divisors, whose sum is σ = 149345024. Its totient is φ = 149345022.

The previous prime is 149344973. The next prime is 149345039. The reversal of 149345023 is 320543941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149345023 - 2²¹ = 147247871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149345093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74672511 + 74672512.

It is an arithmetic number, because the mean of its divisors is an integer number (74672512).

Almost surely, 2^149345023 is an apocalyptic number.

149345023 is a deficient number, since it is larger than the sum of its proper divisors (1).

149345023 is an equidigital number, since it uses as much as digits as its factorization.

149345023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 149345023 is about 12220.6801365554. The cubic root of 149345023 is about 530.5548041001.

Adding to 149345023 its reverse (320543941), we get a palindrome (469888964).

The spelling of 149345023 in words is "one hundred forty-nine million, three hundred forty-five thousand, twenty-three".