149719567 has 2 divisors, whose sum is σ = 149719568. Its totient is φ = 149719566.

The previous prime is 149719543. The next prime is 149719579. The reversal of 149719567 is 765917941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149719567 - 2¹⁵ = 149686799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149719567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149719267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74859783 + 74859784.

It is an arithmetic number, because the mean of its divisors is an integer number (74859784).

Almost surely, 2^149719567 is an apocalyptic number.

149719567 is a deficient number, since it is larger than the sum of its proper divisors (1).

149719567 is an equidigital number, since it uses as much as digits as its factorization.

149719567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 149719567 is about 12235.9947286684. The cubic root of 149719567 is about 530.9979618853.

The spelling of 149719567 in words is "one hundred forty-nine million, seven hundred nineteen thousand, five hundred sixty-seven".