149501567 has 2 divisors, whose sum is σ = 149501568. Its totient is φ = 149501566.

The previous prime is 149501551. The next prime is 149501581. The reversal of 149501567 is 765105941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149501567 - 2⁴ = 149501551 is a prime.

It is a super-3 number, since 3×149501567³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149501567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149501507) by changing a digit.

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 as a sum of consecutive naturals, namely, 74750783 + 74750784.

It is an arithmetic number, because the mean of its divisors is an integer number (74750784).

Almost surely, 2^149501567 is an apocalyptic number.

149501567 is a deficient number, since it is larger than the sum of its proper divisors (1).

149501567 is an equidigital number, since it uses as much as digits as its factorization.

149501567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 149501567 is about 12227.0833398648. The cubic root of 149501567 is about 530.7401158632.

The spelling of 149501567 in words is "one hundred forty-nine million, five hundred one thousand, five hundred sixty-seven".