149392687 has 8 divisors (see below), whose sum is σ = 157509360. Its totient is φ = 141301440.

The previous prime is 149392673. The next prime is 149392693. The reversal of 149392687 is 786293941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149392687 - 2¹¹ = 149390639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149392687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149392697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6387 + ... + 18427.

It is an arithmetic number, because the mean of its divisors is an integer number (19688670).

Almost surely, 2^149392687 is an apocalyptic number.

149392687 is a deficient number, since it is larger than the sum of its proper divisors (8116673).

149392687 is a wasteful number, since it uses less digits than its factorization.

149392687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713.

The product of its digits is 653184, while the sum is 49.

The square root of 149392687 is about 12222.6301179411. The cubic root of 149392687 is about 530.6112409197.

The spelling of 149392687 in words is "one hundred forty-nine million, three hundred ninety-two thousand, six hundred eighty-seven".