74222461 has 2 divisors, whose sum is σ = 74222462. Its totient is φ = 74222460.

The previous prime is 74222453. The next prime is 74222471. The reversal of 74222461 is 16422247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 15163236 = 7685^2 + 3894^2 .

It is an emirp because it is prime and its reverse (16422247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74222461 - 2³ = 74222453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74222411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37111230 + 37111231.

It is an arithmetic number, because the mean of its divisors is an integer number (37111231).

Almost surely, 2^74222461 is an apocalyptic number.

It is an amenable number.

74222461 is a deficient number, since it is larger than the sum of its proper divisors (1).

74222461 is an equidigital number, since it uses as much as digits as its factorization.

74222461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 74222461 is about 8615.2458467533. The cubic root of 74222461 is about 420.2539299665.

It can be divided in two parts, 7422246 and 1, that added together give a palindrome (7422247).

The spelling of 74222461 in words is "seventy-four million, two hundred twenty-two thousand, four hundred sixty-one".