1225045746 has 12 divisors (see below), whose sum is σ = 2654265822. Its totient is φ = 408348576.

The previous prime is 1225045727. The next prime is 1225045807. The reversal of 1225045746 is 6475405221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1080108225 + 144937521 = 32865^2 + 12039^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1225045746.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34029031 + ... + 34029066.

Almost surely, 2^1225045746 is an apocalyptic number.

1225045746 is an abundant number, since it is smaller than the sum of its proper divisors (1429220076).

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

1225045746 is a wasteful number, since it uses less digits than its factorization.

1225045746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68058105 (or 68058102 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 1225045746 is about 35000.6535081847. The cubic root of 1225045746 is about 1070.0007994870. Note that the first 3 decimals are identical.

The spelling of 1225045746 in words is "one billion, two hundred twenty-five million, forty-five thousand, seven hundred forty-six".