1516140042 has 8 divisors (see below), whose sum is σ = 3032280096. Its totient is φ = 505380012.

The previous prime is 1516139983. The next prime is 1516140049. The reversal of 1516140042 is 2400416151.

It is a happy number.

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

1516140042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1516139994 and 1516140021.

It is not an unprimeable number, because it can be changed into a prime (1516140049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126344998 + ... + 126345009.

It is an arithmetic number, because the mean of its divisors is an integer number (379035012).

Almost surely, 2^1516140042 is an apocalyptic number.

1516140042 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.

1516140042 is a wasteful number, since it uses less digits than its factorization.

1516140042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252690012.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1516140042 is about 38937.6429949220. The cubic root of 1516140042 is about 1148.8053231716.

Adding to 1516140042 its reverse (2400416151), we get a palindrome (3916556193).

The spelling of 1516140042 in words is "one billion, five hundred sixteen million, one hundred forty thousand, forty-two".