1022497381 has 2 divisors, whose sum is σ = 1022497382. Its totient is φ = 1022497380.

The previous prime is 1022497321. The next prime is 1022497391. The reversal of 1022497381 is 1837942201.

1022497381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717436225 + 305061156 = 26785^2 + 17466^2 .

It is an emirp because it is prime and its reverse (1837942201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022497381 - 2⁹ = 1022496869 is a prime.

It is a super-2 number, since 2×1022497381² = 2091001788303718322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022497381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022497321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511248690 + 511248691.

It is an arithmetic number, because the mean of its divisors is an integer number (511248691).

Almost surely, 2^1022497381 is an apocalyptic number.

It is an amenable number.

1022497381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022497381 is an equidigital number, since it uses as much as digits as its factorization.

1022497381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1022497381 is about 31976.5129587327. The cubic root of 1022497381 is about 1007.4435826027.

The spelling of 1022497381 in words is "one billion, twenty-two million, four hundred ninety-seven thousand, three hundred eighty-one".