245744142 has 16 divisors (see below), whose sum is σ = 561700992. Its totient is φ = 70212600.

The previous prime is 245744131. The next prime is 245744189. The reversal of 245744142 is 241447542.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2925484 + ... + 2925567.

It is an arithmetic number, because the mean of its divisors is an integer number (35106312).

Almost surely, 2^245744142 is an apocalyptic number.

245744142 is an abundant number, since it is smaller than the sum of its proper divisors (315956850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245744142 is a wasteful number, since it uses less digits than its factorization.

245744142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851063.

The product of its digits is 35840, while the sum is 33.

The square root of 245744142 is about 15676.2285642944. The cubic root of 245744142 is about 626.3653496473.

The spelling of 245744142 in words is "two hundred forty-five million, seven hundred forty-four thousand, one hundred forty-two".