149521282 has 4 divisors (see below), whose sum is σ = 224281926. Its totient is φ = 74760640.

The previous prime is 149521247. The next prime is 149521283. The reversal of 149521282 is 282125941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 146627881 + 2893401 = 12109^2 + 1701^2 .

It is a super-2 number, since 2×149521282² = 44713227541847048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149521283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37380319 + ... + 37380322.

Almost surely, 2^149521282 is an apocalyptic number.

149521282 is a deficient number, since it is larger than the sum of its proper divisors (74760644).

149521282 is an equidigital number, since it uses as much as digits as its factorization.

149521282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74760643.

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

The square root of 149521282 is about 12227.8895153661. The cubic root of 149521282 is about 530.7634446743.

The spelling of 149521282 in words is "one hundred forty-nine million, five hundred twenty-one thousand, two hundred eighty-two".