1240300143 has 12 divisors (see below), whose sum is σ = 1835241408. Its totient is φ = 806699040.

The previous prime is 1240300141. The next prime is 1240300169. The reversal of 1240300143 is 3410030421.

It is not a de Polignac number, because 1240300143 - 2¹ = 1240300141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240300141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1680255 + ... + 1680992.

It is an arithmetic number, because the mean of its divisors is an integer number (152936784).

Almost surely, 2^1240300143 is an apocalyptic number.

1240300143 is a deficient number, since it is larger than the sum of its proper divisors (594941265).

1240300143 is a wasteful number, since it uses less digits than its factorization.

1240300143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361294 (or 3361291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1240300143 is about 35217.8952096800. The cubic root of 1240300143 is about 1074.4237453810.

Adding to 1240300143 its reverse (3410030421), we get a palindrome (4650330564).

The spelling of 1240300143 in words is "one billion, two hundred forty million, three hundred thousand, one hundred forty-three".