1201967385 has 16 divisors (see below), whose sum is σ = 1975125696. Its totient is φ = 623723328.

The previous prime is 1201967369. The next prime is 1201967413. The reversal of 1201967385 is 5837691021.

It is not a de Polignac number, because 1201967385 - 2⁴ = 1201967369 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082299 + ... + 1083408.

It is an arithmetic number, because the mean of its divisors is an integer number (123445356).

Almost surely, 2^1201967385 is an apocalyptic number.

1201967385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201967385 is a deficient number, since it is larger than the sum of its proper divisors (773158311).

1201967385 is a wasteful number, since it uses less digits than its factorization.

1201967385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165752.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1201967385 is about 34669.4012783607. The cubic root of 1201967385 is about 1063.2389905805.

The spelling of 1201967385 in words is "one billion, two hundred one million, nine hundred sixty-seven thousand, three hundred eighty-five".