1545142142 has 8 divisors (see below), whose sum is σ = 2318029176. Its totient is φ = 772465752.

The previous prime is 1545142133. The next prime is 1545142171. The reversal of 1545142142 is 2412415451.

It is a happy number.

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

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, 32828 + ... + 64559.

It is an arithmetic number, because the mean of its divisors is an integer number (289753647).

Almost surely, 2^1545142142 is an apocalyptic number.

1545142142 is a deficient number, since it is larger than the sum of its proper divisors (772887034).

1545142142 is an equidigital number, since it uses as much as digits as its factorization.

1545142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105322.

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

The square root of 1545142142 is about 39308.2960963713. The cubic root of 1545142142 is about 1156.0842356492.

Adding to 1545142142 its reverse (2412415451), we get a palindrome (3957557593).

The spelling of 1545142142 in words is "one billion, five hundred forty-five million, one hundred forty-two thousand, one hundred forty-two".