149887020 has 48 divisors (see below), whose sum is σ = 420215040. Its totient is φ = 39919296.

The previous prime is 149887013. The next prime is 149887039. The reversal of 149887020 is 20788941.

It is a super-2 number, since 2×149887020² = 44932237528960800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149887020.

It is an unprimeable number.

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, 91771 + ... + 93389.

It is an arithmetic number, because the mean of its divisors is an integer number (8754480).

Almost surely, 2^149887020 is an apocalyptic number.

149887020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149887020 is an abundant number, since it is smaller than the sum of its proper divisors (270328020).

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

149887020 is a wasteful number, since it uses less digits than its factorization.

149887020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 149887020 is about 12242.8354558901. The cubic root of 149887020 is about 531.1958520128.

The spelling of 149887020 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, twenty".