149797572 has 12 divisors (see below), whose sum is σ = 349527696. Its totient is φ = 49932520.

The previous prime is 149797541. The next prime is 149797579. The reversal of 149797572 is 275797941.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (149797579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241554 + ... + 6241577.

It is an arithmetic number, because the mean of its divisors is an integer number (29127308).

Almost surely, 2^149797572 is an apocalyptic number.

149797572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149797572 is an abundant number, since it is smaller than the sum of its proper divisors (199730124).

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

149797572 is a wasteful number, since it uses less digits than its factorization.

149797572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12483138 (or 12483136 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 51.

The square root of 149797572 is about 12239.1818354006. The cubic root of 149797572 is about 531.0901638276.

The spelling of 149797572 in words is "one hundred forty-nine million, seven hundred ninety-seven thousand, five hundred seventy-two".