1245867055 has 16 divisors (see below), whose sum is σ = 1504002240. Its totient is φ = 990738432.

The previous prime is 1245867053. The next prime is 1245867089. The reversal of 1245867055 is 5507685421.

It is a cyclic number.

It is not a de Polignac number, because 1245867055 - 2¹ = 1245867053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245867053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798366 + ... + 799924.

It is an arithmetic number, because the mean of its divisors is an integer number (94000140).

Almost surely, 2^1245867055 is an apocalyptic number.

1245867055 is a deficient number, since it is larger than the sum of its proper divisors (258135185).

1245867055 is a wasteful number, since it uses less digits than its factorization.

1245867055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 1245867055 is about 35296.8419975499. The cubic root of 1245867055 is about 1076.0288128044.

The spelling of 1245867055 in words is "one billion, two hundred forty-five million, eight hundred sixty-seven thousand, fifty-five".