149566523 has 2 divisors, whose sum is σ = 149566524. Its totient is φ = 149566522.

The previous prime is 149566519. The next prime is 149566559. The reversal of 149566523 is 325665941.

149566523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149566523 - 2² = 149566519 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (149506523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74783261 + 74783262.

It is an arithmetic number, because the mean of its divisors is an integer number (74783262).

Almost surely, 2^149566523 is an apocalyptic number.

149566523 is a deficient number, since it is larger than the sum of its proper divisors (1).

149566523 is an equidigital number, since it uses as much as digits as its factorization.

149566523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The square root of 149566523 is about 12229.7392858556. The cubic root of 149566523 is about 530.8169707171.

The spelling of 149566523 in words is "one hundred forty-nine million, five hundred sixty-six thousand, five hundred twenty-three".