149249568 has 48 divisors (see below), whose sum is σ = 421920576. Its totient is φ = 45922560.

The previous prime is 149249567. The next prime is 149249587. The reversal of 149249568 is 865942941.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (149249561) 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, 58548 + ... + 61043.

It is an arithmetic number, because the mean of its divisors is an integer number (8790012).

Almost surely, 2^149249568 is an apocalyptic number.

It is an amenable number.

149249568 is an abundant number, since it is smaller than the sum of its proper divisors (272671008).

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

149249568 is a wasteful number, since it uses less digits than its factorization.

149249568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119617 (or 119609 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 149249568 is about 12216.7740422748. The cubic root of 149249568 is about 530.4417439715.

The spelling of 149249568 in words is "one hundred forty-nine million, two hundred forty-nine thousand, five hundred sixty-eight".