149232820 has 48 divisors (see below), whose sum is σ = 342796608. Its totient is φ = 54120960.

The previous prime is 149232781. The next prime is 149232823. The reversal of 149232820 is 28232941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149232823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114412 + ... + 115708.

It is an arithmetic number, because the mean of its divisors is an integer number (7141596).

Almost surely, 2^149232820 is an apocalyptic number.

149232820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149232820 is an abundant number, since it is smaller than the sum of its proper divisors (193563788).

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

149232820 is a wasteful number, since it uses less digits than its factorization.

149232820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 149232820 is about 12216.0885720430. The cubic root of 149232820 is about 530.4219021036.

The spelling of 149232820 in words is "one hundred forty-nine million, two hundred thirty-two thousand, eight hundred twenty".