149249830 has 8 divisors (see below), whose sum is σ = 268649712. Its totient is φ = 59699928.

The previous prime is 149249797. The next prime is 149249831. The reversal of 149249830 is 38942941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149249831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7462482 + ... + 7462501.

It is an arithmetic number, because the mean of its divisors is an integer number (33581214).

Almost surely, 2^149249830 is an apocalyptic number.

149249830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149249830 is a deficient number, since it is larger than the sum of its proper divisors (119399882).

149249830 is a wasteful number, since it uses less digits than its factorization.

149249830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14924990.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 149249830 is about 12216.7847652318. The cubic root of 149249830 is about 530.4420543591.

The spelling of 149249830 in words is "one hundred forty-nine million, two hundred forty-nine thousand, eight hundred thirty".