1201795671 has 16 divisors (see below), whose sum is σ = 1698637824. Its totient is φ = 753185664.

The previous prime is 1201795669. The next prime is 1201795697. The reversal of 1201795671 is 1765971021.

It is not a de Polignac number, because 1201795671 - 2¹ = 1201795669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201795601) 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, 31690 + ... + 58376.

It is an arithmetic number, because the mean of its divisors is an integer number (106164864).

Almost surely, 2^1201795671 is an apocalyptic number.

1201795671 is a deficient number, since it is larger than the sum of its proper divisors (496842153).

1201795671 is a wasteful number, since it uses less digits than its factorization.

1201795671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27590.

The product of its (nonzero) digits is 26460, while the sum is 39.

The square root of 1201795671 is about 34666.9247410266. The cubic root of 1201795671 is about 1063.1883564515.

The spelling of 1201795671 in words is "one billion, two hundred one million, seven hundred ninety-five thousand, six hundred seventy-one".