1420156115 has 24 divisors (see below), whose sum is σ = 2068963872. Its totient is φ = 916531200.

The previous prime is 1420156063. The next prime is 1420156169. The reversal of 1420156115 is 5116510241.

It is not a de Polignac number, because 1420156115 - 2⁸ = 1420155859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60086 + ... + 80315.

It is an arithmetic number, because the mean of its divisors is an integer number (86206828).

Almost surely, 2^1420156115 is an apocalyptic number.

1420156115 is a deficient number, since it is larger than the sum of its proper divisors (648807757).

1420156115 is a wasteful number, since it uses less digits than its factorization.

1420156115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140447 (or 140430 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1420156115 is about 37684.9587368754. The cubic root of 1420156115 is about 1124.0320536761.

Adding to 1420156115 its reverse (5116510241), we get a palindrome (6536666356).

The spelling of 1420156115 in words is "one billion, four hundred twenty million, one hundred fifty-six thousand, one hundred fifteen".