149190385 has 8 divisors (see below), whose sum is σ = 189559656. Its totient is φ = 112331520.

The previous prime is 149190313. The next prime is 149190403. The reversal of 149190385 is 583091941.

It can be written as a sum of positive squares in 4 ways, for example, as 14653584 + 134536801 = 3828^2 + 11599^2 .

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

It is not a de Polignac number, because 149190385 - 2¹⁹ = 148666097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877506 + ... + 877675.

It is an arithmetic number, because the mean of its divisors is an integer number (23694957).

Almost surely, 2^149190385 is an apocalyptic number.

It is an amenable number.

149190385 is a deficient number, since it is larger than the sum of its proper divisors (40369271).

149190385 is a wasteful number, since it uses less digits than its factorization.

149190385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755203.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 149190385 is about 12214.3515996552. The cubic root of 149190385 is about 530.3716214142.

The spelling of 149190385 in words is "one hundred forty-nine million, one hundred ninety thousand, three hundred eighty-five".