145527547 has 16 divisors (see below), whose sum is σ = 165279744. Its totient is φ = 127993800.

The previous prime is 145527527. The next prime is 145527553. The reversal of 145527547 is 745725541.

It is not a de Polignac number, because 145527547 - 2⁷ = 145527419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145527527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39498 + ... + 43024.

It is an arithmetic number, because the mean of its divisors is an integer number (10329984).

Almost surely, 2^145527547 is an apocalyptic number.

145527547 is a deficient number, since it is larger than the sum of its proper divisors (19752197).

145527547 is an equidigital number, since it uses as much as digits as its factorization.

145527547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3569 counting only the distinct ones).

The product of its digits is 196000, while the sum is 40.

The square root of 145527547 is about 12063.4798876609. The cubic root of 145527547 is about 525.9951459021.

The spelling of 145527547 in words is "one hundred forty-five million, five hundred twenty-seven thousand, five hundred forty-seven".