1542115 has 4 divisors (see below), whose sum is σ = 1850544. Its totient is φ = 1233688.

The previous prime is 1542091. The next prime is 1542119. The reversal of 1542115 is 5112451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1542115 - 2⁷ = 1541987 is a prime.

It is a Duffinian number.

1542115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1542092 and 1542101.

It is not an unprimeable number, because it can be changed into a prime (1542119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154207 + ... + 154216.

It is an arithmetic number, because the mean of its divisors is an integer number (462636).

2^1542115 is an apocalyptic number.

1542115 is a deficient number, since it is larger than the sum of its proper divisors (308429).

1542115 is an equidigital number, since it uses as much as digits as its factorization.

1542115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308428.

The product of its digits is 200, while the sum is 19.

The square root of 1542115 is about 1241.8192300009. The cubic root of 1542115 is about 115.5328767062.

Adding to 1542115 its reverse (5112451), we get a palindrome (6654566).

The spelling of 1542115 in words is "one million, five hundred forty-two thousand, one hundred fifteen".