149366687 has 4 divisors (see below), whose sum is σ = 151412880. Its totient is φ = 147320496.

The previous prime is 149366683. The next prime is 149366699. The reversal of 149366687 is 786663941.

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 149366687 - 2² = 149366683 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 (149366683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022987 + ... + 1023132.

It is an arithmetic number, because the mean of its divisors is an integer number (37853220).

Almost surely, 2^149366687 is an apocalyptic number.

149366687 is a deficient number, since it is larger than the sum of its proper divisors (2046193).

149366687 is an equidigital number, since it uses as much as digits as its factorization.

149366687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046192.

The product of its digits is 1306368, while the sum is 50.

The square root of 149366687 is about 12221.5664707925. The cubic root of 149366687 is about 530.5804569660.

The spelling of 149366687 in words is "one hundred forty-nine million, three hundred sixty-six thousand, six hundred eighty-seven".