1243055286 has 48 divisors (see below), whose sum is σ = 3065886720. Its totient is φ = 360304560.

The previous prime is 1243055251. The next prime is 1243055327. The reversal of 1243055286 is 6825503421.

1243055286 is a `hidden beast` number, since 1 + 24 + 3 + 0 + 552 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1243055286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131926 + ... + 141033.

It is an arithmetic number, because the mean of its divisors is an integer number (63872640).

Almost surely, 2^1243055286 is an apocalyptic number.

1243055286 is an abundant number, since it is smaller than the sum of its proper divisors (1822831434).

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

1243055286 is a wasteful number, since it uses less digits than its factorization.

1243055286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273001 (or 272998 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1243055286 is about 35256.9891794521. The cubic root of 1243055286 is about 1075.2187147555.

The spelling of 1243055286 in words is "one billion, two hundred forty-three million, fifty-five thousand, two hundred eighty-six".