2261003601 has 8 divisors (see below), whose sum is σ = 3017780064. Its totient is φ = 1505781440.

The previous prime is 2261003599. The next prime is 2261003603. The reversal of 2261003601 is 1063001622.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2261003599) and next prime (2261003603).

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 2261003601 - 2¹ = 2261003599 is a prime.

It is a super-2 number, since 2×2261003601² = 10224274567469934402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2261003603) 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, 385176 + ... + 391001.

It is an arithmetic number, because the mean of its divisors is an integer number (377222508).

Almost surely, 2^2261003601 is an apocalyptic number.

It is an amenable number.

2261003601 is a deficient number, since it is larger than the sum of its proper divisors (756776463).

2261003601 is an equidigital number, since it uses as much as digits as its factorization.

2261003601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777151.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2261003601 is about 47550.0115772857. The cubic root of 2261003601 is about 1312.5033422863.

The spelling of 2261003601 in words is "two billion, two hundred sixty-one million, three thousand, six hundred one".