145572645 has 16 divisors (see below), whose sum is σ = 234221760. Its totient is φ = 77203584.

The previous prime is 145572643. The next prime is 145572659. The reversal of 145572645 is 546275541.

It is not a de Polignac number, because 145572645 - 2¹ = 145572643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145572643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24424 + ... + 29793.

It is an arithmetic number, because the mean of its divisors is an integer number (14638860).

Almost surely, 2^145572645 is an apocalyptic number.

145572645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145572645 is a deficient number, since it is larger than the sum of its proper divisors (88649115).

145572645 is a wasteful number, since it uses less digits than its factorization.

145572645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54404.

The product of its digits is 168000, while the sum is 39.

The square root of 145572645 is about 12065.3489381783. The cubic root of 145572645 is about 526.0494744001.

The spelling of 145572645 in words is "one hundred forty-five million, five hundred seventy-two thousand, six hundred forty-five".