149694288 has 80 divisors (see below), whose sum is σ = 413068800. Its totient is φ = 46609920.

The previous prime is 149694287. The next prime is 149694289. The reversal of 149694288 is 882496941.

It is an interprime number because it is at equal distance from previous prime (149694287) and next prime (149694289).

It is a self number, because there is not a number n which added to its sum of digits gives 149694288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149694287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41418 + ... + 44886.

It is an arithmetic number, because the mean of its divisors is an integer number (5163360).

Almost surely, 2^149694288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149694288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206534400).

149694288 is an abundant number, since it is smaller than the sum of its proper divisors (263374512).

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

149694288 is a wasteful number, since it uses less digits than its factorization.

149694288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540 (or 3534 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 149694288 is about 12234.9617081542. The cubic root of 149694288 is about 530.9680752261.

The spelling of 149694288 in words is "one hundred forty-nine million, six hundred ninety-four thousand, two hundred eighty-eight".