1225436126 has 32 divisors (see below), whose sum is σ = 1998071712. Its totient is φ = 561392640.

The previous prime is 1225436111. The next prime is 1225436171. The reversal of 1225436126 is 6216345221.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1225436092 and 1225436101.

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, 1096520 + ... + 1097636.

It is an arithmetic number, because the mean of its divisors is an integer number (62439741).

Almost surely, 2^1225436126 is an apocalyptic number.

1225436126 is a deficient number, since it is larger than the sum of its proper divisors (772635586).

1225436126 is a wasteful number, since it uses less digits than its factorization.

1225436126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its digits is 17280, while the sum is 32.

The square root of 1225436126 is about 35006.2298169911. The cubic root of 1225436126 is about 1070.1144449166.

The spelling of 1225436126 in words is "one billion, two hundred twenty-five million, four hundred thirty-six thousand, one hundred twenty-six".