4251229142 has 16 divisors (see below), whose sum is σ = 6558977040. Its totient is φ = 2065416192.

The previous prime is 4251229139. The next prime is 4251229153. The reversal of 4251229142 is 2419221524.

It is a junction number, because it is equal to n+sod(n) for n = 4251229099 and 4251229108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111467 + ... + 144662.

It is an arithmetic number, because the mean of its divisors is an integer number (409936065).

Almost surely, 2^4251229142 is an apocalyptic number.

4251229142 is a deficient number, since it is larger than the sum of its proper divisors (2307747898).

4251229142 is a wasteful number, since it uses less digits than its factorization.

4251229142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256367.

The product of its digits is 11520, while the sum is 32.

The square root of 4251229142 is about 65201.4504593264. The cubic root of 4251229142 is about 1619.9620402120.

The spelling of 4251229142 in words is "four billion, two hundred fifty-one million, two hundred twenty-nine thousand, one hundred forty-two".