149873522 has 8 divisors (see below), whose sum is σ = 225775836. Its totient is φ = 74614912.

The previous prime is 149873519. The next prime is 149873527. The reversal of 149873522 is 225378941.

It can be written as a sum of positive squares in 2 ways, for example, as 145467721 + 4405801 = 12061^2 + 2099^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 149873522.

It is not an unprimeable number, because it can be changed into a prime (149873527) 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, 160343 + ... + 161274.

Almost surely, 2^149873522 is an apocalyptic number.

149873522 is a deficient number, since it is larger than the sum of its proper divisors (75902314).

149873522 is a wasteful number, since it uses less digits than its factorization.

149873522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321852.

The product of its digits is 120960, while the sum is 41.

The square root of 149873522 is about 12242.2841822921. The cubic root of 149873522 is about 531.1799060093.

The spelling of 149873522 in words is "one hundred forty-nine million, eight hundred seventy-three thousand, five hundred twenty-two".