149821522 has 8 divisors (see below), whose sum is σ = 225097200. Its totient is φ = 74789124.

The previous prime is 149821499. The next prime is 149821531. The reversal of 149821522 is 225128941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59272 + ... + 61747.

It is an arithmetic number, because the mean of its divisors is an integer number (28137150).

Almost surely, 2^149821522 is an apocalyptic number.

149821522 is a deficient number, since it is larger than the sum of its proper divisors (75275678).

149821522 is a wasteful number, since it uses less digits than its factorization.

149821522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121640.

The product of its digits is 11520, while the sum is 34.

The square root of 149821522 is about 12240.1602113698. The cubic root of 149821522 is about 531.1184663148.

The spelling of 149821522 in words is "one hundred forty-nine million, eight hundred twenty-one thousand, five hundred twenty-two".