149609711 has 2 divisors, whose sum is σ = 149609712. Its totient is φ = 149609710.

The previous prime is 149609701. The next prime is 149609717. The reversal of 149609711 is 117906941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149609711 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149609717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74804855 + 74804856.

It is an arithmetic number, because the mean of its divisors is an integer number (74804856).

Almost surely, 2^149609711 is an apocalyptic number.

149609711 is a deficient number, since it is larger than the sum of its proper divisors (1).

149609711 is an equidigital number, since it uses as much as digits as its factorization.

149609711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 149609711 is about 12231.5048542688. The cubic root of 149609711 is about 530.8680577221.

The spelling of 149609711 in words is "one hundred forty-nine million, six hundred nine thousand, seven hundred eleven".