149490490 has 8 divisors (see below), whose sum is σ = 269082900. Its totient is φ = 59796192.

The previous prime is 149490433. The next prime is 149490491. The reversal of 149490490 is 94094941.

It can be written as a sum of positive squares in 2 ways, for example, as 134536801 + 14953689 = 11599^2 + 3867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (149490491) 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 3 ways as a sum of consecutive naturals, for example, 7474515 + ... + 7474534.

Almost surely, 2^149490490 is an apocalyptic number.

149490490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149490490 is a deficient number, since it is larger than the sum of its proper divisors (119592410).

149490490 is a wasteful number, since it uses less digits than its factorization.

149490490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14949056.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 149490490 is about 12226.6303616328. The cubic root of 149490490 is about 530.7270075202.

The spelling of 149490490 in words is "one hundred forty-nine million, four hundred ninety thousand, four hundred ninety".