145253616 has 40 divisors (see below), whose sum is σ = 377167824. Its totient is φ = 48168960.

The previous prime is 145253609. The next prime is 145253623. The reversal of 145253616 is 616352541.

It is an interprime number because it is at equal distance from previous prime (145253609) and next prime (145253623).

It is a super-2 number, since 2×145253616² = 42197225922150912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776 + ... + 17136.

Almost surely, 2^145253616 is an apocalyptic number.

145253616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145253616 is an abundant number, since it is smaller than the sum of its proper divisors (231914208).

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

145253616 is a wasteful number, since it uses less digits than its factorization.

145253616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15569 (or 15563 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 145253616 is about 12052.1208092186. The cubic root of 145253616 is about 525.6649063014.

The spelling of 145253616 in words is "one hundred forty-five million, two hundred fifty-three thousand, six hundred sixteen".