145513660 has 24 divisors (see below), whose sum is σ = 306459216. Its totient is φ = 58037760.

The previous prime is 145513651. The next prime is 145513661. The reversal of 145513660 is 66315541.

145513660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145513661) 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, 3246 + ... + 17365.

It is an arithmetic number, because the mean of its divisors is an integer number (12769134).

Almost surely, 2^145513660 is an apocalyptic number.

145513660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145513660 is an abundant number, since it is smaller than the sum of its proper divisors (160945556).

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

145513660 is a wasteful number, since it uses less digits than its factorization.

145513660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20973 (or 20971 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145513660 is about 12062.9042937429. The cubic root of 145513660 is about 525.9784143002.

The spelling of 145513660 in words is "one hundred forty-five million, five hundred thirteen thousand, six hundred sixty".