1290233085 has 16 divisors (see below), whose sum is σ = 2084814720. Its totient is φ = 681310400.

The previous prime is 1290233083. The next prime is 1290233117. The reversal of 1290233085 is 5803320921.

It is not a de Polignac number, because 1290233085 - 2¹ = 1290233083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290233081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424305 + ... + 427334.

It is an arithmetic number, because the mean of its divisors is an integer number (130300920).

Almost surely, 2^1290233085 is an apocalyptic number.

1290233085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1290233085 is a deficient number, since it is larger than the sum of its proper divisors (794581635).

1290233085 is a wasteful number, since it uses less digits than its factorization.

1290233085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851748.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1290233085 is about 35919.8146570942. The cubic root of 1290233085 is about 1088.6527936790.

The spelling of 1290233085 in words is "one billion, two hundred ninety million, two hundred thirty-three thousand, eighty-five".