149381711 has 4 divisors (see below), whose sum is σ = 155876592. Its totient is φ = 142886832.

The previous prime is 149381693. The next prime is 149381731. The reversal of 149381711 is 117183941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149381711 - 2⁶ = 149381647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149381731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3247406 + ... + 3247451.

It is an arithmetic number, because the mean of its divisors is an integer number (38969148).

Almost surely, 2^149381711 is an apocalyptic number.

149381711 is a deficient number, since it is larger than the sum of its proper divisors (6494881).

149381711 is an equidigital number, since it uses as much as digits as its factorization.

149381711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494880.

The product of its digits is 6048, while the sum is 35.

The square root of 149381711 is about 12222.1811064965. The cubic root of 149381711 is about 530.5982457909.

The spelling of 149381711 in words is "one hundred forty-nine million, three hundred eighty-one thousand, seven hundred eleven".