145422288 has 60 divisors (see below), whose sum is σ = 443983488. Its totient is φ = 44066880.

The previous prime is 145422283. The next prime is 145422323. The reversal of 145422288 is 882224541.

145422288 is a `hidden beast` number, since 14 + 542 + 22 + 88 = 666.

145422288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145422288² = 42295283694309888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145422283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44320 + ... + 47487.

Almost surely, 2^145422288 is an apocalyptic number.

145422288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145422288 is an abundant number, since it is smaller than the sum of its proper divisors (298561200).

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

145422288 is a wasteful number, since it uses less digits than its factorization.

145422288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91832 (or 91823 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 145422288 is about 12059.1163855400. The cubic root of 145422288 is about 525.8682991799.

The spelling of 145422288 in words is "one hundred forty-five million, four hundred twenty-two thousand, two hundred eighty-eight".