2261423137 has 2 divisors, whose sum is σ = 2261423138. Its totient is φ = 2261423136.

The previous prime is 2261423119. The next prime is 2261423179. The reversal of 2261423137 is 7313241622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1440657936 + 820765201 = 37956^2 + 28649^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261423137 - 2³¹ = 113939489 is a prime.

It is a super-2 number, since 2×2261423137² = 10228069209117841538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261423099 and 2261423108.

It is not a weakly prime, because it can be changed into another prime (2261423107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130711568 + 1130711569.

It is an arithmetic number, because the mean of its divisors is an integer number (1130711569).

Almost surely, 2^2261423137 is an apocalyptic number.

It is an amenable number.

2261423137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261423137 is an equidigital number, since it uses as much as digits as its factorization.

2261423137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 2261423137 is about 47554.4228962985. The cubic root of 2261423137 is about 1312.5845169097.

Adding to 2261423137 its reverse (7313241622), we get a palindrome (9574664759).

The spelling of 2261423137 in words is "two billion, two hundred sixty-one million, four hundred twenty-three thousand, one hundred thirty-seven".