1225116455 has 16 divisors (see below), whose sum is σ = 1521897120. Its totient is φ = 945635712.

The previous prime is 1225116443. The next prime is 1225116461. The reversal of 1225116455 is 5546115221.

It is not a de Polignac number, because 1225116455 - 2¹² = 1225112359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351632 + ... + 355098.

It is an arithmetic number, because the mean of its divisors is an integer number (95118570).

Almost surely, 2^1225116455 is an apocalyptic number.

1225116455 is a deficient number, since it is larger than the sum of its proper divisors (296780665).

1225116455 is a wasteful number, since it uses less digits than its factorization.

1225116455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938.

The product of its digits is 12000, while the sum is 32.

The square root of 1225116455 is about 35001.6636033203. The cubic root of 1225116455 is about 1070.0213857198.

The spelling of 1225116455 in words is "one billion, two hundred twenty-five million, one hundred sixteen thousand, four hundred fifty-five".