149699487 has 16 divisors (see below), whose sum is σ = 233678592. Its totient is φ = 83455680.

The previous prime is 149699483. The next prime is 149699491. The reversal of 149699487 is 784996941.

It is an interprime number because it is at equal distance from previous prime (149699483) and next prime (149699491).

It is not a de Polignac number, because 149699487 - 2² = 149699483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149699483) 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 15 ways as a sum of consecutive naturals, for example, 86073 + ... + 87794.

It is an arithmetic number, because the mean of its divisors is an integer number (14604912).

Almost surely, 2^149699487 is an apocalyptic number.

149699487 is a deficient number, since it is larger than the sum of its proper divisors (83979105).

149699487 is a wasteful number, since it uses less digits than its factorization.

149699487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173918.

The product of its digits is 3919104, while the sum is 57.

The square root of 149699487 is about 12235.1741712164. The cubic root of 149699487 is about 530.9742221341.

The spelling of 149699487 in words is "one hundred forty-nine million, six hundred ninety-nine thousand, four hundred eighty-seven".