2261353251 has 8 divisors (see below), whose sum is σ = 3020156944. Its totient is φ = 1505059200.

The previous prime is 2261353217. The next prime is 2261353291. The reversal of 2261353251 is 1523531622.

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

It is not a de Polignac number, because 2261353251 - 2⁹ = 2261352739 is a prime.

It is a super-2 number, since 2×2261353251² = 10227437051616538002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261353201) by changing a digit.

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, 625306 + ... + 628911.

It is an arithmetic number, because the mean of its divisors is an integer number (377519618).

Almost surely, 2^2261353251 is an apocalyptic number.

2261353251 is a deficient number, since it is larger than the sum of its proper divisors (758803693).

2261353251 is a wasteful number, since it uses less digits than its factorization.

2261353251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254821.

The product of its digits is 10800, while the sum is 30.

The square root of 2261353251 is about 47553.6880904100. The cubic root of 2261353251 is about 1312.5709955973.

Adding to 2261353251 its reverse (1523531622), we get a palindrome (3784884873).

The spelling of 2261353251 in words is "two billion, two hundred sixty-one million, three hundred fifty-three thousand, two hundred fifty-one".