145333388 has 12 divisors (see below), whose sum is σ = 254503872. Its totient is φ = 72618000.

The previous prime is 145333381. The next prime is 145333393. The reversal of 145333388 is 883333541.

It is a super-2 number, since 2×145333388² = 42243587335117088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145333381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4988 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (21208656).

Almost surely, 2^145333388 is an apocalyptic number.

It is an amenable number.

145333388 is a deficient number, since it is larger than the sum of its proper divisors (109170484).

145333388 is a wasteful number, since it uses less digits than its factorization.

145333388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24352 (or 24350 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 145333388 is about 12055.4298139884. The cubic root of 145333388 is about 525.7611188614.

The spelling of 145333388 in words is "one hundred forty-five million, three hundred thirty-three thousand, three hundred eighty-eight".