22751361 has 32 divisors (see below), whose sum is σ = 34794240. Its totient is φ = 14871600.

The previous prime is 22751329. The next prime is 22751369. The reversal of 22751361 is 16315722.

22751361 = 230² + 231² + ... + 431².

It is a happy number.

It is not a de Polignac number, because 22751361 - 2⁵ = 22751329 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22751369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220836 + ... + 220938.

It is an arithmetic number, because the mean of its divisors is an integer number (1087320).

Almost surely, 2^22751361 is an apocalyptic number.

It is an amenable number.

22751361 is a deficient number, since it is larger than the sum of its proper divisors (12042879).

22751361 is an equidigital number, since it uses as much as digits as its factorization.

22751361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 207 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 22751361 is about 4769.8386765173. The cubic root of 22751361 is about 283.3582057365.

The spelling of 22751361 in words is "twenty-two million, seven hundred fifty-one thousand, three hundred sixty-one".