1151306840 has 16 divisors (see below), whose sum is σ = 2590440480. Its totient is φ = 460522720.

The previous prime is 1151306813. The next prime is 1151306867. The reversal of 1151306840 is 486031511.

It is an interprime number because it is at equal distance from previous prime (1151306813) and next prime (1151306867).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14391296 + ... + 14391375.

It is an arithmetic number, because the mean of its divisors is an integer number (161902530).

Almost surely, 2^1151306840 is an apocalyptic number.

1151306840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151306840 is an abundant number, since it is smaller than the sum of its proper divisors (1439133640).

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

1151306840 is a wasteful number, since it uses less digits than its factorization.

1151306840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28782682 (or 28782678 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1151306840 is about 33930.9127492910. The cubic root of 1151306840 is about 1048.0862616679.

The spelling of 1151306840 in words is "one billion, one hundred fifty-one million, three hundred six thousand, eight hundred forty".