1004222451 has 4 divisors (see below), whose sum is σ = 1338963272. Its totient is φ = 669481632.

The previous prime is 1004222441. The next prime is 1004222459. The reversal of 1004222451 is 1542224001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1542224001 = 3 ⋅514074667.

It is not a de Polignac number, because 1004222451 - 2²² = 1000028147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004222459) 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, 167370406 + ... + 167370411.

It is an arithmetic number, because the mean of its divisors is an integer number (334740818).

Almost surely, 2^1004222451 is an apocalyptic number.

1004222451 is a deficient number, since it is larger than the sum of its proper divisors (334740821).

1004222451 is an equidigital number, since it uses as much as digits as its factorization.

1004222451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334740820.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1004222451 is about 31689.4690867487. The cubic root of 1004222451 is about 1001.4055072904.

Adding to 1004222451 its reverse (1542224001), we get a palindrome (2546446452).

The spelling of 1004222451 in words is "one billion, four million, two hundred twenty-two thousand, four hundred fifty-one".