149831022 has 32 divisors (see below), whose sum is σ = 328149504. Its totient is φ = 45230400.

The previous prime is 149830999. The next prime is 149831027. The reversal of 149831022 is 220138941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149831027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13698 + ... + 22074.

It is an arithmetic number, because the mean of its divisors is an integer number (10254672).

Almost surely, 2^149831022 is an apocalyptic number.

149831022 is an abundant number, since it is smaller than the sum of its proper divisors (178318482).

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

149831022 is a wasteful number, since it uses less digits than its factorization.

149831022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 149831022 is about 12240.5482720342. The cubic root of 149831022 is about 531.1296919356.

Adding to 149831022 its reverse (220138941), we get a palindrome (369969963).

The spelling of 149831022 in words is "one hundred forty-nine million, eight hundred thirty-one thousand, twenty-two".