1542100142 has 16 divisors (see below), whose sum is σ = 2582122752. Its totient is φ = 684652920.

The previous prime is 1542100129. The next prime is 1542100229. The reversal of 1542100142 is 2410012451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814118 + ... + 816009.

It is an arithmetic number, because the mean of its divisors is an integer number (161382672).

Almost surely, 2^1542100142 is an apocalyptic number.

1542100142 is a deficient number, since it is larger than the sum of its proper divisors (1040022610).

1542100142 is a wasteful number, since it uses less digits than its factorization.

1542100142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630183.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1542100142 is about 39269.5829109503. The cubic root of 1542100142 is about 1155.3250565888.

Adding to 1542100142 its reverse (2410012451), we get a palindrome (3952112593).

The spelling of 1542100142 in words is "one billion, five hundred forty-two million, one hundred thousand, one hundred forty-two".