145747528 has 32 divisors (see below), whose sum is σ = 291016800. Its totient is φ = 68192512.

The previous prime is 145747507. The next prime is 145747529. The reversal of 145747528 is 825747541.

It is a super-2 number, since 2×145747528² = 42484683836221568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145747529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21351 + ... + 27337.

It is an arithmetic number, because the mean of its divisors is an integer number (9094275).

Almost surely, 2^145747528 is an apocalyptic number.

It is an amenable number.

145747528 is a deficient number, since it is larger than the sum of its proper divisors (145269272).

145747528 is a wasteful number, since it uses less digits than its factorization.

145747528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189 (or 6185 counting only the distinct ones).

The product of its digits is 313600, while the sum is 43.

The square root of 145747528 is about 12072.5940874362. The cubic root of 145747528 is about 526.2600457720.

The spelling of 145747528 in words is "one hundred forty-five million, seven hundred forty-seven thousand, five hundred twenty-eight".