2257485142 has 32 divisors (see below), whose sum is σ = 3775942944. Its totient is φ = 1011985920.

The previous prime is 2257485137. The next prime is 2257485151. The reversal of 2257485142 is 2415847522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2257485095 and 2257485104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188518 + ... + 200134.

It is an arithmetic number, because the mean of its divisors is an integer number (117998217).

Almost surely, 2^2257485142 is an apocalyptic number.

2257485142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2257485142 is a deficient number, since it is larger than the sum of its proper divisors (1518457802).

2257485142 is a wasteful number, since it uses less digits than its factorization.

2257485142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11725 (or 11703 counting only the distinct ones).

The product of its digits is 179200, while the sum is 40.

The square root of 2257485142 is about 47512.9997158672. Note that the first 3 decimals coincide. The cubic root of 2257485142 is about 1311.8221718103.

The spelling of 2257485142 in words is "two billion, two hundred fifty-seven million, four hundred eighty-five thousand, one hundred forty-two".