149989796 has 24 divisors (see below), whose sum is σ = 287624736. Its totient is φ = 67872320.

The previous prime is 149989787. The next prime is 149989799. The reversal of 149989796 is 697989941.

It is a happy number.

149989796 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (149989799) 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, 2480 + ... + 17496.

It is an arithmetic number, because the mean of its divisors is an integer number (11984364).

Almost surely, 2^149989796 is an apocalyptic number.

It is an amenable number.

149989796 is a deficient number, since it is larger than the sum of its proper divisors (137634940).

149989796 is a wasteful number, since it uses less digits than its factorization.

149989796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15259 (or 15257 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 62.

The square root of 149989796 is about 12247.0321302755. The cubic root of 149989796 is about 531.3172361314.

The spelling of 149989796 in words is "one hundred forty-nine million, nine hundred eighty-nine thousand, seven hundred ninety-six".