22015461 has 24 divisors (see below), whose sum is σ = 32096736. Its totient is φ = 13416000.

The previous prime is 22015457. The next prime is 22015519. The reversal of 22015461 is 16451022.

It is not a de Polignac number, because 22015461 - 2² = 22015457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87586 + ... + 87836.

It is an arithmetic number, because the mean of its divisors is an integer number (1337364).

Almost surely, 2^22015461 is an apocalyptic number.

It is an amenable number.

22015461 is a deficient number, since it is larger than the sum of its proper divisors (10081275).

22015461 is a wasteful number, since it uses less digits than its factorization.

22015461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 22015461 is about 4692.0636184945. The cubic root of 22015461 is about 280.2695575890.

Adding to 22015461 its reverse (16451022), we get a palindrome (38466483).

The spelling of 22015461 in words is "twenty-two million, fifteen thousand, four hundred sixty-one".