1201266425 has 18 divisors (see below), whose sum is σ = 1557167262. Its totient is φ = 919219840.

The previous prime is 1201266419. The next prime is 1201266433. The reversal of 1201266425 is 5246621021.

It can be written as a sum of positive squares in 3 ways, for example, as 128572921 + 1072693504 = 11339^2 + 32752^2 .

It is not a de Polignac number, because 1201266425 - 2¹² = 1201262329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32192 + ... + 58641.

Almost surely, 2^1201266425 is an apocalyptic number.

It is an amenable number.

1201266425 is a deficient number, since it is larger than the sum of its proper divisors (355900837).

1201266425 is an equidigital number, since it uses as much as digits as its factorization.

1201266425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90889 (or 90861 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1201266425 is about 34659.2906015112. The cubic root of 1201266425 is about 1063.0322648026.

Adding to 1201266425 its reverse (5246621021), we get a palindrome (6447887446).

The spelling of 1201266425 in words is "one billion, two hundred one million, two hundred sixty-six thousand, four hundred twenty-five".