1545412142 has 4 divisors (see below), whose sum is σ = 2318118216. Its totient is φ = 772706070.

The previous prime is 1545412111. The next prime is 1545412157. The reversal of 1545412142 is 2412145451.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386353034 + ... + 386353037.

It is an arithmetic number, because the mean of its divisors is an integer number (579529554).

Almost surely, 2^1545412142 is an apocalyptic number.

1545412142 is a deficient number, since it is larger than the sum of its proper divisors (772706074).

1545412142 is an equidigital number, since it uses as much as digits as its factorization.

1545412142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772706073.

The product of its digits is 6400, while the sum is 29.

The square root of 1545412142 is about 39311.7303358679. The cubic root of 1545412142 is about 1156.1515702449.

Adding to 1545412142 its reverse (2412145451), we get a palindrome (3957557593).

The spelling of 1545412142 in words is "one billion, five hundred forty-five million, four hundred twelve thousand, one hundred forty-two".