145567640 has 32 divisors (see below), whose sum is σ = 328175280. Its totient is φ = 58111872.

The previous prime is 145567619. The next prime is 145567649. The reversal of 145567640 is 46765541.

145567640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145567594 and 145567603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145567649) 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, 18554 + ... + 25206.

Almost surely, 2^145567640 is an apocalyptic number.

145567640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145567640 is an abundant number, since it is smaller than the sum of its proper divisors (182607640).

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

145567640 is a wasteful number, since it uses less digits than its factorization.

145567640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 145567640 is about 12065.1415242425. The cubic root of 145567640 is about 526.0434455481.

The spelling of 145567640 in words is "one hundred forty-five million, five hundred sixty-seven thousand, six hundred forty".