145269628 has 24 divisors (see below), whose sum is σ = 291658752. Its totient is φ = 62018544.

The previous prime is 145269599. The next prime is 145269629. The reversal of 145269628 is 826962541.

It is a super-2 number, since 2×145269628² = 42206529638516768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145269629) 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 7 ways as a sum of consecutive naturals, for example, 2500 + ... + 17227.

It is an arithmetic number, because the mean of its divisors is an integer number (12152448).

Almost surely, 2^145269628 is an apocalyptic number.

It is an amenable number.

145269628 is an abundant number, since it is smaller than the sum of its proper divisors (146389124).

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

145269628 is a wasteful number, since it uses less digits than its factorization.

145269628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20001 (or 19999 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 145269628 is about 12052.7850723391. The cubic root of 145269628 is about 525.6842211096.

The spelling of 145269628 in words is "one hundred forty-five million, two hundred sixty-nine thousand, six hundred twenty-eight".