22987545 has 64 divisors (see below), whose sum is σ = 44330496. Its totient is φ = 9953280.

The previous prime is 22987541. The next prime is 22987567. The reversal of 22987545 is 54578922.

It is not a de Polignac number, because 22987545 - 2² = 22987541 is a prime.

Its product of digits (201600) is a multiple of the sum of its prime divisors (210).

It is a junction number, because it is equal to n+sod(n) for n = 22987497 and 22987506.

It is not an unprimeable number, because it can be changed into a prime (22987541) 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 63 ways as a sum of consecutive naturals, for example, 236937 + ... + 237033.

It is an arithmetic number, because the mean of its divisors is an integer number (692664).

Almost surely, 2^22987545 is an apocalyptic number.

It is an amenable number.

22987545 is a deficient number, since it is larger than the sum of its proper divisors (21342951).

22987545 is a wasteful number, since it uses less digits than its factorization.

22987545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its digits is 201600, while the sum is 42.

The square root of 22987545 is about 4794.5328239569. The cubic root of 22987545 is about 284.3353548565.

It can be divided in two parts, 22987 and 545, that added together give a palindrome (23532).

The spelling of 22987545 in words is "twenty-two million, nine hundred eighty-seven thousand, five hundred forty-five".