145039188 has 48 divisors (see below), whose sum is σ = 392559104. Its totient is φ = 40819680.

The previous prime is 145039187. The next prime is 145039259. The reversal of 145039188 is 881930541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145039183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7258 + ... + 18513.

Almost surely, 2^145039188 is an apocalyptic number.

It is an amenable number.

145039188 is an abundant number, since it is smaller than the sum of its proper divisors (247519916).

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

145039188 is a wasteful number, since it uses less digits than its factorization.

145039188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25852 (or 25850 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 145039188 is about 12043.2216619973. The cubic root of 145039188 is about 525.4061111705.

The spelling of 145039188 in words is "one hundred forty-five million, thirty-nine thousand, one hundred eighty-eight".