149952820 has 12 divisors (see below), whose sum is σ = 314900964. Its totient is φ = 59981120.

The previous prime is 149952811. The next prime is 149952827. The reversal of 149952820 is 28259941.

It can be written as a sum of positive squares in 2 ways, for example, as 71842576 + 78110244 = 8476^2 + 8838^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149952827) 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 in 3 ways as a sum of consecutive naturals, for example, 3748801 + ... + 3748840.

It is an arithmetic number, because the mean of its divisors is an integer number (26241747).

Almost surely, 2^149952820 is an apocalyptic number.

149952820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149952820 is an abundant number, since it is smaller than the sum of its proper divisors (164948144).

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

149952820 is a wasteful number, since it uses less digits than its factorization.

149952820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497650 (or 7497648 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 149952820 is about 12245.5224470008. The cubic root of 149952820 is about 531.2735718261.

The spelling of 149952820 in words is "one hundred forty-nine million, nine hundred fifty-two thousand, eight hundred twenty".