149636911 has 2 divisors, whose sum is σ = 149636912. Its totient is φ = 149636910.

The previous prime is 149636867. The next prime is 149636939. The reversal of 149636911 is 119636941.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149636911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149634911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74818455 + 74818456.

It is an arithmetic number, because the mean of its divisors is an integer number (74818456).

Almost surely, 2^149636911 is an apocalyptic number.

149636911 is a deficient number, since it is larger than the sum of its proper divisors (1).

149636911 is an equidigital number, since it uses as much as digits as its factorization.

149636911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 149636911 is about 12232.6166865475. The cubic root of 149636911 is about 530.9002275059.

The spelling of 149636911 in words is "one hundred forty-nine million, six hundred thirty-six thousand, nine hundred eleven".