149239146 has 64 divisors (see below), whose sum is σ = 356622336. Its totient is φ = 40737600.

The previous prime is 149239127. The next prime is 149239151. The reversal of 149239146 is 641932941.

149239146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107376 + ... + 108756.

It is an arithmetic number, because the mean of its divisors is an integer number (5572224).

Almost surely, 2^149239146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149239146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178311168).

149239146 is an abundant number, since it is smaller than the sum of its proper divisors (207383190).

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

149239146 is a wasteful number, since it uses less digits than its factorization.

149239146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507.

The product of its digits is 46656, while the sum is 39.

The square root of 149239146 is about 12216.3474901461. The cubic root of 149239146 is about 530.4293968838.

The spelling of 149239146 in words is "one hundred forty-nine million, two hundred thirty-nine thousand, one hundred forty-six".