263142973 has 8 divisors (see below), whose sum is σ = 271969280. Its totient is φ = 254337840.

The previous prime is 263142907. The next prime is 263142991. The reversal of 263142973 is 379241362.

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 263142973 - 2¹⁷ = 263011901 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 (263140973) 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, 22348 + ... + 32026.

It is an arithmetic number, because the mean of its divisors is an integer number (33996160).

Almost surely, 2^263142973 is an apocalyptic number.

It is an amenable number.

263142973 is a deficient number, since it is larger than the sum of its proper divisors (8826307).

263142973 is an equidigital number, since it uses as much as digits as its factorization.

263142973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10587.

The product of its digits is 54432, while the sum is 37.

The square root of 263142973 is about 16221.6821877387. The cubic root of 263142973 is about 640.8119358109.

The spelling of 263142973 in words is "two hundred sixty-three million, one hundred forty-two thousand, nine hundred seventy-three".