1320061542 has 8 divisors (see below), whose sum is σ = 2640123096. Its totient is φ = 440020512.

The previous prime is 1320061511. The next prime is 1320061571. The reversal of 1320061542 is 2451600231.

It is a sphenic number, since it is the product of 3 distinct primes.

1320061542 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110005123 + ... + 110005134.

It is an arithmetic number, because the mean of its divisors is an integer number (330015387).

Almost surely, 2^1320061542 is an apocalyptic number.

1320061542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1320061542 is a wasteful number, since it uses less digits than its factorization.

1320061542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220010262.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1320061542 is about 36332.6511831988. The cubic root of 1320061542 is about 1096.9783579976.

Adding to 1320061542 its reverse (2451600231), we get a palindrome (3771661773).

The spelling of 1320061542 in words is "one billion, three hundred twenty million, sixty-one thousand, five hundred forty-two".