149293287 has 40 divisors (see below), whose sum is σ = 262027920. Its totient is φ = 83514240.

The previous prime is 149293273. The next prime is 149293289. The reversal of 149293287 is 782392941.

It is not a de Polignac number, because 149293287 - 2⁴ = 149293271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149293289) 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 39 ways as a sum of consecutive naturals, for example, 5139 + ... + 18027.

It is an arithmetic number, because the mean of its divisors is an integer number (6550698).

Almost surely, 2^149293287 is an apocalyptic number.

149293287 is a deficient number, since it is larger than the sum of its proper divisors (112734633).

149293287 is a wasteful number, since it uses less digits than its factorization.

149293287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925 (or 12916 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 149293287 is about 12218.5632134061. The cubic root of 149293287 is about 530.4935322144.

The spelling of 149293287 in words is "one hundred forty-nine million, two hundred ninety-three thousand, two hundred eighty-seven".