149497387 has 8 divisors (see below), whose sum is σ = 163265760. Its totient is φ = 136053120.

The previous prime is 149497379. The next prime is 149497429. The reversal of 149497387 is 783794941.

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 149497387 - 2³ = 149497379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149497367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80062 + ... + 81907.

It is an arithmetic number, because the mean of its divisors is an integer number (20408220).

Almost surely, 2^149497387 is an apocalyptic number.

149497387 is a deficient number, since it is larger than the sum of its proper divisors (13768373).

149497387 is a wasteful number, since it uses less digits than its factorization.

149497387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162053.

The product of its digits is 1524096, while the sum is 52.

The square root of 149497387 is about 12226.9124066544. The cubic root of 149497387 is about 530.7351693947.

The spelling of 149497387 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, three hundred eighty-seven".