263144142 has 24 divisors (see below), whose sum is σ = 572601744. Its totient is φ = 87336864.

The previous prime is 263144131. The next prime is 263144143. The reversal of 263144142 is 241441362.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263144143) 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 11 ways as a sum of consecutive naturals, for example, 27178 + ... + 35565.

It is an arithmetic number, because the mean of its divisors is an integer number (23858406).

Almost surely, 2^263144142 is an apocalyptic number.

263144142 is an abundant number, since it is smaller than the sum of its proper divisors (309457602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263144142 is a wasteful number, since it uses less digits than its factorization.

263144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62984 (or 62981 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 263144142 is about 16221.7182197201. The cubic root of 263144142 is about 640.8128847349.

The spelling of 263144142 in words is "two hundred sixty-three million, one hundred forty-four thousand, one hundred forty-two".