1225273610 has 64 divisors (see below), whose sum is σ = 2485831680. Its totient is φ = 431009280.

The previous prime is 1225273601. The next prime is 1225273613. The reversal of 1225273610 is 163725221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1225273613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424151 + ... + 427029.

It is an arithmetic number, because the mean of its divisors is an integer number (38841120).

Almost surely, 2^1225273610 is an apocalyptic number.

1225273610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225273610 is an abundant number, since it is smaller than the sum of its proper divisors (1260558070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225273610 is a wasteful number, since it uses less digits than its factorization.

1225273610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1225273610 is about 35003.9084960523. The cubic root of 1225273610 is about 1070.0671370224.

Adding to 1225273610 its reverse (163725221), we get a palindrome (1388998831).

The spelling of 1225273610 in words is "one billion, two hundred twenty-five million, two hundred seventy-three thousand, six hundred ten".