1917142063 has 8 divisors (see below), whose sum is σ = 1993639680. Its totient is φ = 1841337120.

The previous prime is 1917142061. The next prime is 1917142093. The reversal of 1917142063 is 3602417191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1917142063 - 2¹ = 1917142061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1917142061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167520 + ... + 178597.

It is an arithmetic number, because the mean of its divisors is an integer number (249204960).

Almost surely, 2^1917142063 is an apocalyptic number.

1917142063 is a deficient number, since it is larger than the sum of its proper divisors (76497617).

1917142063 is a wasteful number, since it uses less digits than its factorization.

1917142063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346337.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1917142063 is about 43785.1808606519. The cubic root of 1917142063 is about 1242.2760104013.

The spelling of 1917142063 in words is "one billion, nine hundred seventeen million, one hundred forty-two thousand, sixty-three".