147952989 has 24 divisors (see below), whose sum is σ = 227403072. Its totient is φ = 92373120.

The previous prime is 147952967. The next prime is 147952991. The reversal of 147952989 is 989259741.

147952989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 147952989 - 2⁵ = 147952957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147952919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29992 + ... + 34574.

It is an arithmetic number, because the mean of its divisors is an integer number (9475128).

Almost surely, 2^147952989 is an apocalyptic number.

It is an amenable number.

147952989 is a deficient number, since it is larger than the sum of its proper divisors (79450083).

147952989 is a wasteful number, since it uses less digits than its factorization.

147952989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817 (or 4814 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 147952989 is about 12163.5927669418. The cubic root of 147952989 is about 528.9012350115.

The spelling of 147952989 in words is "one hundred forty-seven million, nine hundred fifty-two thousand, nine hundred eighty-nine".