149262487 has 4 divisors (see below), whose sum is σ = 162831816. Its totient is φ = 135693160.

The previous prime is 149262473. The next prime is 149262493. The reversal of 149262487 is 784262941.

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 149262487 - 2⁷ = 149262359 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 (149262437) 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 3 ways as a sum of consecutive naturals, for example, 6784648 + ... + 6784669.

It is an arithmetic number, because the mean of its divisors is an integer number (40707954).

Almost surely, 2^149262487 is an apocalyptic number.

149262487 is a deficient number, since it is larger than the sum of its proper divisors (13569329).

149262487 is a wasteful number, since it uses less digits than its factorization.

149262487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13569328.

The product of its digits is 193536, while the sum is 43.

The square root of 149262487 is about 12217.3027710702. The cubic root of 149262487 is about 530.4570484919.

The spelling of 149262487 in words is "one hundred forty-nine million, two hundred sixty-two thousand, four hundred eighty-seven".