145499888 has 20 divisors (see below), whose sum is σ = 282278808. Its totient is φ = 72653760.

The previous prime is 145499881. The next prime is 145499897. The reversal of 145499888 is 888994541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145499881) 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, 7370 + ... + 18582.

Almost surely, 2^145499888 is an apocalyptic number.

It is an amenable number.

145499888 is a deficient number, since it is larger than the sum of its proper divisors (136778920).

145499888 is a wasteful number, since it uses less digits than its factorization.

145499888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12032 (or 12026 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 56.

The square root of 145499888 is about 12062.3334392646. Note that the first 3 decimals coincide. The cubic root of 145499888 is about 525.9618202034.

The spelling of 145499888 in words is "one hundred forty-five million, four hundred ninety-nine thousand, eight hundred eighty-eight".