1225911846 has 16 divisors (see below), whose sum is σ = 2452684608. Its totient is φ = 408493800.

The previous prime is 1225911829. The next prime is 1225911847. The reversal of 1225911846 is 6481195221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225911847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16560 + ... + 52211.

It is an arithmetic number, because the mean of its divisors is an integer number (153292788).

Almost surely, 2^1225911846 is an apocalyptic number.

1225911846 is an abundant number, since it is smaller than the sum of its proper divisors (1226772762).

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

1225911846 is a wasteful number, since it uses less digits than its factorization.

1225911846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71747.

The product of its digits is 34560, while the sum is 39.

The square root of 1225911846 is about 35013.0239482396. The cubic root of 1225911846 is about 1070.2529014688.

The spelling of 1225911846 in words is "one billion, two hundred twenty-five million, nine hundred eleven thousand, eight hundred forty-six".