149719727 has 2 divisors, whose sum is σ = 149719728. Its totient is φ = 149719726.

The previous prime is 149719651. The next prime is 149719771. The reversal of 149719727 is 727917941.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149719727 - 2¹⁶ = 149654191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149719027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74859863 + 74859864.

It is an arithmetic number, because the mean of its divisors is an integer number (74859864).

Almost surely, 2^149719727 is an apocalyptic number.

149719727 is a deficient number, since it is larger than the sum of its proper divisors (1).

149719727 is an equidigital number, since it uses as much as digits as its factorization.

149719727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 47.

The square root of 149719727 is about 12236.0012667538. The cubic root of 149719727 is about 530.9981510381.

The spelling of 149719727 in words is "one hundred forty-nine million, seven hundred nineteen thousand, seven hundred twenty-seven".