1202312985 has 16 divisors (see below), whose sum is σ = 1930858560. Its totient is φ = 638847680.

The previous prime is 1202312977. The next prime is 1202313011. The reversal of 1202312985 is 5892132021.

It is a happy number.

It is not a de Polignac number, because 1202312985 - 2³ = 1202312977 is a prime.

It is a super-2 number, since 2×1202312985² = 2891113027799220450, which contains 22 as substring.

It is an unprimeable number.

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, 144951 + ... + 153020.

It is an arithmetic number, because the mean of its divisors is an integer number (120678660).

Almost surely, 2^1202312985 is an apocalyptic number.

1202312985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1202312985 is a deficient number, since it is larger than the sum of its proper divisors (728545575).

1202312985 is a wasteful number, since it uses less digits than its factorization.

1202312985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298248.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1202312985 is about 34674.3851423497. The cubic root of 1202312985 is about 1063.3408846883.

The spelling of 1202312985 in words is "one billion, two hundred two million, three hundred twelve thousand, nine hundred eighty-five".