224001851 has 2 divisors, whose sum is σ = 224001852. Its totient is φ = 224001850.

The previous prime is 224001787. The next prime is 224001857. The reversal of 224001851 is 158100422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224001851 - 2⁶ = 224001787 is a prime.

It is not a weakly prime, because it can be changed into another prime (224001857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112000925 + 112000926.

It is an arithmetic number, because the mean of its divisors is an integer number (112000926).

Almost surely, 2^224001851 is an apocalyptic number.

224001851 is a deficient number, since it is larger than the sum of its proper divisors (1).

224001851 is an equidigital number, since it uses as much as digits as its factorization.

224001851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 224001851 is about 14966.6913845379. The cubic root of 224001851 is about 607.3194672057.

The spelling of 224001851 in words is "two hundred twenty-four million, one thousand, eight hundred fifty-one".