1421143542 has 80 divisors (see below), whose sum is σ = 3919319712. Its totient is φ = 374803200.

The previous prime is 1421143541. The next prime is 1421143547. The reversal of 1421143542 is 2453411241.

1421143542 is a `hidden beast` number, since 1 + 4 + 2 + 114 + 3 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421143541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33459 + ... + 62942.

Almost surely, 2^1421143542 is an apocalyptic number.

1421143542 is an abundant number, since it is smaller than the sum of its proper divisors (2498176170).

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

1421143542 is a wasteful number, since it uses less digits than its factorization.

1421143542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96435 (or 96426 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1421143542 is about 37698.0575361649. The cubic root of 1421143542 is about 1124.2925044934.

Adding to 1421143542 its reverse (2453411241), we get a palindrome (3874554783).

The spelling of 1421143542 in words is "one billion, four hundred twenty-one million, one hundred forty-three thousand, five hundred forty-two".