1023851 has 2 divisors, whose sum is σ = 1023852. Its totient is φ = 1023850.

The previous prime is 1023839. The next prime is 1023857. The reversal of 1023851 is 1583201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023851 - 2¹⁴ = 1007467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1023857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511925 + 511926.

It is an arithmetic number, because the mean of its divisors is an integer number (511926).

2^1023851 is an apocalyptic number.

1023851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023851 is an equidigital number, since it uses as much as digits as its factorization.

1023851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1023851 is about 1011.8552267988. The cubic root of 1023851 is about 100.7887949983.

The spelling of 1023851 in words is "one million, twenty-three thousand, eight hundred fifty-one".