1022942651 has 4 divisors (see below), whose sum is σ = 1023607152. Its totient is φ = 1022278152.

The previous prime is 1022942647. The next prime is 1022942659. The reversal of 1022942651 is 1562492201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1562492201 = 6089 ⋅256609.

It is a cyclic number.

It is not a de Polignac number, because 1022942651 - 2² = 1022942647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022942659) 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, 329936 + ... + 333021.

It is an arithmetic number, because the mean of its divisors is an integer number (255901788).

Almost surely, 2^1022942651 is an apocalyptic number.

1022942651 is a deficient number, since it is larger than the sum of its proper divisors (664501).

1022942651 is an equidigital number, since it uses as much as digits as its factorization.

1022942651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664500.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1022942651 is about 31983.4746548901. The cubic root of 1022942651 is about 1007.5897995393.

The spelling of 1022942651 in words is "one billion, twenty-two million, nine hundred forty-two thousand, six hundred fifty-one".