149090 has 16 divisors (see below), whose sum is σ = 284472. Its totient is φ = 56064.

The previous prime is 149087. The next prime is 149099. The reversal of 149090 is 90941.

It can be written as a sum of positive squares in 4 ways, for example, as 146689 + 2401 = 383^2 + 49^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149090.

It is not an unprimeable number, because it can be changed into a prime (149099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 608.

2¹⁴⁹⁰⁹⁰ is an apocalyptic number.

149090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149090 is a deficient number, since it is larger than the sum of its proper divisors (135382).

149090 is a wasteful number, since it uses less digits than its factorization.

149090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 149090 is about 386.1217424596. The cubic root of 149090 is about 53.0252638543.

It can be divided in two parts, 14 and 9090, that multiplied together give a triangular number (127260 = T₅₀₄).

The spelling of 149090 in words is "one hundred forty-nine thousand, ninety".