149273190 has 96 divisors (see below), whose sum is σ = 426995712. Its totient is φ = 35880000.

The previous prime is 149273149. The next prime is 149273219. The reversal of 149273190 is 91372941.

It is a super-2 number, since 2×149273190² = 44564970505552200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129115 + ... + 130265.

It is an arithmetic number, because the mean of its divisors is an integer number (4447872).

Almost surely, 2^149273190 is an apocalyptic number.

149273190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149273190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213497856).

149273190 is an abundant number, since it is smaller than the sum of its proper divisors (277722522).

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

149273190 is a wasteful number, since it uses less digits than its factorization.

149273190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 149273190 is about 12217.7407895241. The cubic root of 149273190 is about 530.4697271544.

The spelling of 149273190 in words is "one hundred forty-nine million, two hundred seventy-three thousand, one hundred ninety".