145230131251540 has 48 divisors (see below), whose sum is σ = 307214335008000. Its totient is φ = 57667556600192.

The previous prime is 145230131251531. The next prime is 145230131251607. The reversal of 145230131251540 is 45152131032541.

It is a self number, because there is not a number n which added to its sum of digits gives 145230131251540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9649900 + ... + 19585219.

It is an arithmetic number, because the mean of its divisors is an integer number (6400298646000).

Almost surely, 2^{145230131251540} is an apocalyptic number.

145230131251540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145230131251540 is an abundant number, since it is smaller than the sum of its proper divisors (161984203756460).

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

145230131251540 is a wasteful number, since it uses less digits than its factorization.

145230131251540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29236944 (or 29236942 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 145230131251540 in words is "one hundred forty-five trillion, two hundred thirty billion, one hundred thirty-one million, two hundred fifty-one thousand, five hundred forty".