1155286494 has 24 divisors (see below), whose sum is σ = 2540483400. Its totient is φ = 379347408.

The previous prime is 1155286487. The next prime is 1155286499. The reversal of 1155286494 is 4946825511.

1155286494 is a `hidden beast` number, since 1 + 1 + 552 + 8 + 6 + 4 + 94 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155286499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477769 + ... + 480180.

It is an arithmetic number, because the mean of its divisors is an integer number (105853475).

Almost surely, 2^1155286494 is an apocalyptic number.

1155286494 is an abundant number, since it is smaller than the sum of its proper divisors (1385196906).

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

1155286494 is a wasteful number, since it uses less digits than its factorization.

1155286494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958024 (or 958021 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 1155286494 is about 33989.5056451252. The cubic root of 1155286494 is about 1049.2924920837.

The spelling of 1155286494 in words is "one billion, one hundred fifty-five million, two hundred eighty-six thousand, four hundred ninety-four".