145121532988 has 12 divisors (see below), whose sum is σ = 268901664192. Its totient is φ = 68292486080.

The previous prime is 145121532979. The next prime is 145121532989. The reversal of 145121532988 is 889235121541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145121532989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067070028 + ... + 1067070163.

It is an arithmetic number, because the mean of its divisors is an integer number (22408472016).

Almost surely, 2^145121532988 is an apocalyptic number.

It is an amenable number.

145121532988 is a deficient number, since it is larger than the sum of its proper divisors (123780131204).

145121532988 is a wasteful number, since it uses less digits than its factorization.

145121532988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134140212 (or 2134140210 counting only the distinct ones).

The product of its digits is 691200, while the sum is 49.

The spelling of 145121532988 in words is "one hundred forty-five billion, one hundred twenty-one million, five hundred thirty-two thousand, nine hundred eighty-eight".