145277328 has 40 divisors (see below), whose sum is σ = 428915008. Its totient is φ = 41507712.

The previous prime is 145277303. The next prime is 145277333. The reversal of 145277328 is 823772541.

It is a super-2 number, since 2×145277328² = 42211004061639168, which contains 22 as substring.

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, 215851 + ... + 216522.

Almost surely, 2^145277328 is an apocalyptic number.

It is an amenable number.

145277328 is an abundant number, since it is smaller than the sum of its proper divisors (283637680).

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

145277328 is a wasteful number, since it uses less digits than its factorization.

145277328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432391 (or 432385 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 145277328 is about 12053.1044963528. The cubic root of 145277328 is about 525.6935088895.

The spelling of 145277328 in words is "one hundred forty-five million, two hundred seventy-seven thousand, three hundred twenty-eight".