2251402231 has 8 divisors (see below), whose sum is σ = 2425911824. Its totient is φ = 2077081920.

The previous prime is 2251402217. The next prime is 2251402267. The reversal of 2251402231 is 1322041522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251402231 - 2²³ = 2243013623 is a prime.

It is a super-2 number, since 2×2251402231² = 10137624011503554722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251402631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22110 + ... + 70651.

It is an arithmetic number, because the mean of its divisors is an integer number (303238978).

Almost surely, 2^2251402231 is an apocalyptic number.

2251402231 is a deficient number, since it is larger than the sum of its proper divisors (174509593).

2251402231 is a wasteful number, since it uses less digits than its factorization.

2251402231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94641.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2251402231 is about 47448.9434128938. The cubic root of 2251402231 is about 1310.6428542657.

Adding to 2251402231 its reverse (1322041522), we get a palindrome (3573443753).

The spelling of 2251402231 in words is "two billion, two hundred fifty-one million, four hundred two thousand, two hundred thirty-one".