149643354 has 128 divisors (see below), whose sum is σ = 380160000. Its totient is φ = 39118464.

The previous prime is 149643331. The next prime is 149643371. The reversal of 149643354 is 453346941.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1681342 + ... + 1681430.

It is an arithmetic number, because the mean of its divisors is an integer number (2970000).

Almost surely, 2^149643354 is an apocalyptic number.

149643354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149643354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190080000).

149643354 is an abundant number, since it is smaller than the sum of its proper divisors (230516646).

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

149643354 is a wasteful number, since it uses less digits than its factorization.

149643354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 163 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 149643354 is about 12232.8800370150. The cubic root of 149643354 is about 530.9078471524.

It can be divided in two parts, 1496 and 43354, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 149643354 in words is "one hundred forty-nine million, six hundred forty-three thousand, three hundred fifty-four".