149925889 has 8 divisors (see below), whose sum is σ = 158538240. Its totient is φ = 141549600.

The previous prime is 149925883. The next prime is 149925899. The reversal of 149925889 is 988529941.

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

It is a cyclic number.

It is not a de Polignac number, because 149925889 - 2¹¹ = 149923841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149925883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57709 + ... + 60250.

It is an arithmetic number, because the mean of its divisors is an integer number (19817280).

Almost surely, 2^149925889 is an apocalyptic number.

It is an amenable number.

149925889 is a deficient number, since it is larger than the sum of its proper divisors (8612351).

149925889 is a wasteful number, since it uses less digits than its factorization.

149925889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118031.

The product of its digits is 1866240, while the sum is 55.

The square root of 149925889 is about 12244.4227712049. The cubic root of 149925889 is about 531.2417649658.

The spelling of 149925889 in words is "one hundred forty-nine million, nine hundred twenty-five thousand, eight hundred eighty-nine".