245142142 has 64 divisors (see below), whose sum is σ = 488954880. Its totient is φ = 89565696.

The previous prime is 245142113. The next prime is 245142169. The reversal of 245142142 is 241241542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102828 + ... + 105184.

It is an arithmetic number, because the mean of its divisors is an integer number (7639920).

Almost surely, 2^245142142 is an apocalyptic number.

245142142 is a deficient number, since it is larger than the sum of its proper divisors (243812738).

245142142 is a wasteful number, since it uses less digits than its factorization.

245142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its digits is 2560, while the sum is 25.

The square root of 245142142 is about 15657.0157437489. The cubic root of 245142142 is about 625.8534618740.

Adding to 245142142 its reverse (241241542), we get a palindrome (486383684).

The spelling of 245142142 in words is "two hundred forty-five million, one hundred forty-two thousand, one hundred forty-two".