2251175142 has 16 divisors (see below), whose sum is σ = 4532569200. Its totient is φ = 745355232.

The previous prime is 2251175137. The next prime is 2251175221. The reversal of 2251175142 is 2415711522.

It is a happy number.

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, 1258153 + ... + 1259940.

It is an arithmetic number, because the mean of its divisors is an integer number (283285575).

Almost surely, 2^2251175142 is an apocalyptic number.

2251175142 is an abundant number, since it is smaller than the sum of its proper divisors (2281394058).

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

2251175142 is a wasteful number, since it uses less digits than its factorization.

2251175142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518247.

The product of its digits is 5600, while the sum is 30.

The square root of 2251175142 is about 47446.5503698636. The cubic root of 2251175142 is about 1310.5987865319.

Adding to 2251175142 its reverse (2415711522), we get a palindrome (4666886664).

The spelling of 2251175142 in words is "two billion, two hundred fifty-one million, one hundred seventy-five thousand, one hundred forty-two".