149508757 has 2 divisors, whose sum is σ = 149508758. Its totient is φ = 149508756.

The previous prime is 149508713. The next prime is 149508769. The reversal of 149508757 is 757805941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115799121 + 33709636 = 10761^2 + 5806^2 .

It is an emirp because it is prime and its reverse (757805941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149508757 - 2¹⁹ = 148984469 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 (149508787) 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, 74754378 + 74754379.

It is an arithmetic number, because the mean of its divisors is an integer number (74754379).

Almost surely, 2^149508757 is an apocalyptic number.

It is an amenable number.

149508757 is a deficient number, since it is larger than the sum of its proper divisors (1).

149508757 is an equidigital number, since it uses as much as digits as its factorization.

149508757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 149508757 is about 12227.3773557538. The cubic root of 149508757 is about 530.7486240466.

The spelling of 149508757 in words is "one hundred forty-nine million, five hundred eight thousand, seven hundred fifty-seven".