1922572241 has 4 divisors (see below), whose sum is σ = 1922660592. Its totient is φ = 1922483892.

The previous prime is 1922572237. The next prime is 1922572259. The reversal of 1922572241 is 1422752291.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1422752291 = 199 ⋅7149509.

It is a cyclic number.

It is not a de Polignac number, because 1922572241 - 2² = 1922572237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1922572261) 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, 14030 + ... + 63576.

It is an arithmetic number, because the mean of its divisors is an integer number (480665148).

Almost surely, 2^1922572241 is an apocalyptic number.

It is an amenable number.

1922572241 is a deficient number, since it is larger than the sum of its proper divisors (88351).

1922572241 is an equidigital number, since it uses as much as digits as its factorization.

1922572241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88350.

The product of its digits is 20160, while the sum is 35.

The square root of 1922572241 is about 43847.1463267565. The cubic root of 1922572241 is about 1243.4477929560.

The spelling of 1922572241 in words is "one billion, nine hundred twenty-two million, five hundred seventy-two thousand, two hundred forty-one".