145278288 has 60 divisors (see below), whose sum is σ = 407642560. Its totient is φ = 48299328.

The previous prime is 145278257. The next prime is 145278319. The reversal of 145278288 is 882872541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145278257) and next prime (145278319).

It is a super-2 number, since 2×145278288² = 42211561928421888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65583 + ... + 67761.

Almost surely, 2^145278288 is an apocalyptic number.

145278288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145278288 is an abundant number, since it is smaller than the sum of its proper divisors (262364272).

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

145278288 is a wasteful number, since it uses less digits than its factorization.

145278288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2647 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 145278288 is about 12053.1443200519. The cubic root of 145278288 is about 525.6946668234.

The spelling of 145278288 in words is "one hundred forty-five million, two hundred seventy-eight thousand, two hundred eighty-eight".