149405320 has 32 divisors (see below), whose sum is σ = 336516120. Its totient is φ = 59699200.

The previous prime is 149405273. The next prime is 149405329. The reversal of 149405320 is 23504941.

149405320 = 3149² + 3150² + ... + 3163².

It can be written as a sum of positive squares in 4 ways, for example, as 144817156 + 4588164 = 12034^2 + 2142^2 .

It is not an unprimeable number, because it can be changed into a prime (149405329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62874 + ... + 65206.

Almost surely, 2^149405320 is an apocalyptic number.

149405320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149405320 is an abundant number, since it is smaller than the sum of its proper divisors (187110800).

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

149405320 is a wasteful number, since it uses less digits than its factorization.

149405320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 149405320 is about 12223.1468943149. The cubic root of 149405320 is about 530.6261970799.

The spelling of 149405320 in words is "one hundred forty-nine million, four hundred five thousand, three hundred twenty".