1233940087 has 16 divisors (see below), whose sum is σ = 1372082112. Its totient is φ = 1103731200.

The previous prime is 1233940067. The next prime is 1233940109. The reversal of 1233940087 is 7800493321.

It is a cyclic number.

It is not a de Polignac number, because 1233940087 - 2²³ = 1225551479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233940067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51337 + ... + 71437.

It is an arithmetic number, because the mean of its divisors is an integer number (85755132).

Almost surely, 2^1233940087 is an apocalyptic number.

1233940087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1233940087 is a deficient number, since it is larger than the sum of its proper divisors (138142025).

1233940087 is a wasteful number, since it uses less digits than its factorization.

1233940087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20298.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1233940087 is about 35127.4833570525. The cubic root of 1233940087 is about 1072.5841076683.

The spelling of 1233940087 in words is "one billion, two hundred thirty-three million, nine hundred forty thousand, eighty-seven".