1225727146 has 16 divisors (see below), whose sum is σ = 2103353280. Its totient is φ = 524784960.

The previous prime is 1225727123. The next prime is 1225727171. The reversal of 1225727146 is 6417275221.

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, 29260 + ... + 57511.

It is an arithmetic number, because the mean of its divisors is an integer number (131459580).

Almost surely, 2^1225727146 is an apocalyptic number.

1225727146 is a deficient number, since it is larger than the sum of its proper divisors (877626134).

1225727146 is a wasteful number, since it uses less digits than its factorization.

1225727146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87789.

The product of its digits is 47040, while the sum is 37.

The square root of 1225727146 is about 35010.3862589375. The cubic root of 1225727146 is about 1070.1991494692.

The spelling of 1225727146 in words is "one billion, two hundred twenty-five million, seven hundred twenty-seven thousand, one hundred forty-six".