1151867994 has 16 divisors (see below), whose sum is σ = 2383175520. Its totient is φ = 370716080.

The previous prime is 1151867987. The next prime is 1151867999. The reversal of 1151867994 is 4997681511.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1151867999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3309792 + ... + 3310139.

It is an arithmetic number, because the mean of its divisors is an integer number (148948470).

Almost surely, 2^1151867994 is an apocalyptic number.

1151867994 is an abundant number, since it is smaller than the sum of its proper divisors (1231307526).

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

1151867994 is a wasteful number, since it uses less digits than its factorization.

1151867994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619965.

The product of its digits is 544320, while the sum is 51.

The square root of 1151867994 is about 33939.1808092063. The cubic root of 1151867994 is about 1048.2565152295.

The spelling of 1151867994 in words is "one billion, one hundred fifty-one million, eight hundred sixty-seven thousand, nine hundred ninety-four".