149430920 has 16 divisors (see below), whose sum is σ = 336219660. Its totient is φ = 59772352.

The previous prime is 149430917. The next prime is 149430929. The reversal of 149430920 is 29034941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141467236 + 7963684 = 11894^2 + 2822^2 .

It is a super-4 number, since 4×149430920⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (149430929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867847 + ... + 1867926.

Almost surely, 2^149430920 is an apocalyptic number.

149430920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149430920 is an abundant number, since it is smaller than the sum of its proper divisors (186788740).

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

149430920 is a wasteful number, since it uses less digits than its factorization.

149430920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735784 (or 3735780 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 149430920 is about 12224.1940429625. The cubic root of 149430920 is about 530.6565022365.

The spelling of 149430920 in words is "one hundred forty-nine million, four hundred thirty thousand, nine hundred twenty".