22737161 has 4 divisors (see below), whose sum is σ = 22750992. Its totient is φ = 22723332.

The previous prime is 22737151. The next prime is 22737173. The reversal of 22737161 is 16173722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16173722 = 2 ⋅8086861.

It is a cyclic number.

It is not a de Polignac number, because 22737161 - 2¹⁰ = 22736137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22737151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4055 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (5687748).

Almost surely, 2^22737161 is an apocalyptic number.

It is an amenable number.

22737161 is a deficient number, since it is larger than the sum of its proper divisors (13831).

22737161 is a wasteful number, since it uses less digits than its factorization.

22737161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13830.

The product of its digits is 3528, while the sum is 29.

The square root of 22737161 is about 4768.3499242400. The cubic root of 22737161 is about 283.2992418805.

The spelling of 22737161 in words is "twenty-two million, seven hundred thirty-seven thousand, one hundred sixty-one".