145520672 has 24 divisors (see below), whose sum is σ = 312539472. Its totient is φ = 66145600.

The previous prime is 145520671. The next prime is 145520681. The reversal of 145520672 is 276025541.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (145520671) 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, 206354 + ... + 207057.

It is an arithmetic number, because the mean of its divisors is an integer number (13022478).

Almost surely, 2^145520672 is an apocalyptic number.

It is an amenable number.

145520672 is an abundant number, since it is smaller than the sum of its proper divisors (167018800).

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

145520672 is a wasteful number, since it uses less digits than its factorization.

145520672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413432 (or 413424 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 145520672 is about 12063.1949333500. The cubic root of 145520672 is about 525.9868627657.

The spelling of 145520672 in words is "one hundred forty-five million, five hundred twenty thousand, six hundred seventy-two".