145889968 has 40 divisors (see below), whose sum is σ = 333470720. Its totient is φ = 60505920.

The previous prime is 145889951. The next prime is 145889969. The reversal of 145889968 is 869988541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145889969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17538 + ... + 24481.

It is an arithmetic number, because the mean of its divisors is an integer number (8336768).

Almost surely, 2^145889968 is an apocalyptic number.

It is an amenable number.

145889968 is an abundant number, since it is smaller than the sum of its proper divisors (187580752).

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

145889968 is a wasteful number, since it uses less digits than its factorization.

145889968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42065 (or 42059 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 58.

The square root of 145889968 is about 12078.4919588498. The cubic root of 145889968 is about 526.4314290661.

The spelling of 145889968 in words is "one hundred forty-five million, eight hundred eighty-nine thousand, nine hundred sixty-eight".