1206641425 has 24 divisors (see below), whose sum is σ = 1688552640. Its totient is φ = 847291200.

The previous prime is 1206641389. The next prime is 1206641437. The reversal of 1206641425 is 5241466021.

It is a happy number.

It is not a de Polignac number, because 1206641425 - 2⁹ = 1206640913 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67677 + ... + 83626.

It is an arithmetic number, because the mean of its divisors is an integer number (70356360).

Almost surely, 2^1206641425 is an apocalyptic number.

It is an amenable number.

1206641425 is a deficient number, since it is larger than the sum of its proper divisors (481911215).

1206641425 is a wasteful number, since it uses less digits than its factorization.

1206641425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151353 (or 151348 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1206641425 is about 34736.7445941614. The cubic root of 1206641425 is about 1064.6153989020.

The spelling of 1206641425 in words is "one billion, two hundred six million, six hundred forty-one thousand, four hundred twenty-five".