1022665243 has 8 divisors (see below), whose sum is σ = 1086943968. Its totient is φ = 958844544.

The previous prime is 1022665229. The next prime is 1022665247. The reversal of 1022665243 is 3425662201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022665243 - 2²¹ = 1020568091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022665247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109896 + ... + 118837.

It is an arithmetic number, because the mean of its divisors is an integer number (135867996).

Almost surely, 2^1022665243 is an apocalyptic number.

1022665243 is a deficient number, since it is larger than the sum of its proper divisors (64278725).

1022665243 is a wasteful number, since it uses less digits than its factorization.

1022665243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229013.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1022665243 is about 31979.1376212680. The cubic root of 1022665243 is about 1007.4987097989.

The spelling of 1022665243 in words is "one billion, twenty-two million, six hundred sixty-five thousand, two hundred forty-three".