1225711160 has 32 divisors (see below), whose sum is σ = 2760436800. Its totient is φ = 489824640.

The previous prime is 1225711141. The next prime is 1225711171. The reversal of 1225711160 is 611175221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30545 + ... + 58175.

It is an arithmetic number, because the mean of its divisors is an integer number (86263650).

Almost surely, 2^1225711160 is an apocalyptic number.

1225711160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225711160 is an abundant number, since it is smaller than the sum of its proper divisors (1534725640).

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

1225711160 is a wasteful number, since it uses less digits than its factorization.

1225711160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28751 (or 28747 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1225711160 is about 35010.1579545137. The cubic root of 1225711160 is about 1070.1944969172.

Adding to 1225711160 its reverse (611175221), we get a palindrome (1836886381).

The spelling of 1225711160 in words is "one billion, two hundred twenty-five million, seven hundred eleven thousand, one hundred sixty".