1225321054 has 4 divisors (see below), whose sum is σ = 1837981584. Its totient is φ = 612660526.

The previous prime is 1225321049. The next prime is 1225321073. The reversal of 1225321054 is 4501235221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306330262 + ... + 306330265.

It is an arithmetic number, because the mean of its divisors is an integer number (459495396).

Almost surely, 2^1225321054 is an apocalyptic number.

1225321054 is a deficient number, since it is larger than the sum of its proper divisors (612660530).

1225321054 is an equidigital number, since it uses as much as digits as its factorization.

1225321054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612660529.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1225321054 is about 35004.5861852415. The cubic root of 1225321054 is about 1070.0809482533.

Adding to 1225321054 its reverse (4501235221), we get a palindrome (5726556275).

The spelling of 1225321054 in words is "one billion, two hundred twenty-five million, three hundred twenty-one thousand, fifty-four".