1226941345 has 32 divisors (see below), whose sum is σ = 1723392000. Its totient is φ = 821071296.

The previous prime is 1226941333. The next prime is 1226941381. The reversal of 1226941345 is 5431496221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1226941345 - 2²³ = 1218552737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721306 + ... + 723004.

It is an arithmetic number, because the mean of its divisors is an integer number (53856000).

Almost surely, 2^1226941345 is an apocalyptic number.

It is an amenable number.

1226941345 is a deficient number, since it is larger than the sum of its proper divisors (496450655).

1226941345 is a wasteful number, since it uses less digits than its factorization.

1226941345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197.

The product of its digits is 51840, while the sum is 37.

The square root of 1226941345 is about 35027.7225208834. The cubic root of 1226941345 is about 1070.5524107711.

The spelling of 1226941345 in words is "one billion, two hundred twenty-six million, nine hundred forty-one thousand, three hundred forty-five".