145152644 has 24 divisors (see below), whose sum is σ = 312637248. Its totient is φ = 57422880.

The previous prime is 145152629. The next prime is 145152659. The reversal of 145152644 is 446251541.

It is an interprime number because it is at equal distance from previous prime (145152629) and next prime (145152659).

It is a self number, because there is not a number n which added to its sum of digits gives 145152644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199022 + ... + 199749.

It is an arithmetic number, because the mean of its divisors is an integer number (13026552).

Almost surely, 2^145152644 is an apocalyptic number.

145152644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145152644 is an abundant number, since it is smaller than the sum of its proper divisors (167484604).

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

145152644 is a wasteful number, since it uses less digits than its factorization.

145152644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398795 (or 398793 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 145152644 is about 12047.9311087008. The cubic root of 145152644 is about 525.5430740149.

The spelling of 145152644 in words is "one hundred forty-five million, one hundred fifty-two thousand, six hundred forty-four".