149136568 has 16 divisors (see below), whose sum is σ = 319578480. Its totient is φ = 63915648.

The previous prime is 149136539. The next prime is 149136583. The reversal of 149136568 is 865631941.

It is a congruent number.

It is an unprimeable number.

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, 1331521 + ... + 1331632.

It is an arithmetic number, because the mean of its divisors is an integer number (19973655).

Almost surely, 2^149136568 is an apocalyptic number.

It is an amenable number.

149136568 is an abundant number, since it is smaller than the sum of its proper divisors (170441912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149136568 is a wasteful number, since it uses less digits than its factorization.

149136568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663166 (or 2663162 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 149136568 is about 12212.1483777426. The cubic root of 149136568 is about 530.3078406231.

The spelling of 149136568 in words is "one hundred forty-nine million, one hundred thirty-six thousand, five hundred sixty-eight".