1542203542 has 16 divisors (see below), whose sum is σ = 2548595664. Its totient is φ = 694060000.

The previous prime is 1542203539. The next prime is 1542203563. The reversal of 1542203542 is 2453022451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542203542.

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, 344809 + ... + 349252.

It is an arithmetic number, because the mean of its divisors is an integer number (159287229).

Almost surely, 2^1542203542 is an apocalyptic number.

1542203542 is a deficient number, since it is larger than the sum of its proper divisors (1006392122).

1542203542 is a wasteful number, since it uses less digits than its factorization.

1542203542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694175.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1542203542 is about 39270.8994294758. The cubic root of 1542203542 is about 1155.3508780725.

Adding to 1542203542 its reverse (2453022451), we get a palindrome (3995225993).

The spelling of 1542203542 in words is "one billion, five hundred forty-two million, two hundred three thousand, five hundred forty-two".