1142303142 has 32 divisors (see below), whose sum is σ = 2509413120. Its totient is φ = 345042720.

The previous prime is 1142303131. The next prime is 1142303143. The reversal of 1142303142 is 2413032411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142303143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215209 + ... + 220452.

It is an arithmetic number, because the mean of its divisors is an integer number (78419160).

Almost surely, 2^1142303142 is an apocalyptic number.

1142303142 is an abundant number, since it is smaller than the sum of its proper divisors (1367109978).

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

1142303142 is a wasteful number, since it uses less digits than its factorization.

1142303142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435708.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1142303142 is about 33797.9754127374. The cubic root of 1142303142 is about 1045.3469516361.

Adding to 1142303142 its reverse (2413032411), we get a palindrome (3555335553).

The spelling of 1142303142 in words is "one billion, one hundred forty-two million, three hundred three thousand, one hundred forty-two".