1221074593 has 8 divisors (see below), whose sum is σ = 1261250816. Its totient is φ = 1180947600.

The previous prime is 1221074581. The next prime is 1221074599. The reversal of 1221074593 is 3954701221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221074593 - 2²⁵ = 1187520161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221074599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41983 + ... + 64843.

It is an arithmetic number, because the mean of its divisors is an integer number (157656352).

Almost surely, 2^1221074593 is an apocalyptic number.

It is an amenable number.

1221074593 is a deficient number, since it is larger than the sum of its proper divisors (40176223).

1221074593 is a wasteful number, since it uses less digits than its factorization.

1221074593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24615.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1221074593 is about 34943.8777613476. The cubic root of 1221074593 is about 1068.8433633746.

The spelling of 1221074593 in words is "one billion, two hundred twenty-one million, seventy-four thousand, five hundred ninety-three".