261082373 has 2 divisors, whose sum is σ = 261082374. Its totient is φ = 261082372.

The previous prime is 261082357. The next prime is 261082411. The reversal of 261082373 is 373280162.

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., 199883044 + 61199329 = 14138^2 + 7823^2 .

It is a cyclic number.

It is not a de Polignac number, because 261082373 - 2⁴ = 261082357 is a prime.

It is a super-2 number, since 2×261082373² = 136328010982622258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261082313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130541186 + 130541187.

It is an arithmetic number, because the mean of its divisors is an integer number (130541187).

Almost surely, 2^261082373 is an apocalyptic number.

It is an amenable number.

261082373 is a deficient number, since it is larger than the sum of its proper divisors (1).

261082373 is an equidigital number, since it uses as much as digits as its factorization.

261082373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 261082373 is about 16158.0436006343. The cubic root of 261082373 is about 639.1348768281.

The spelling of 261082373 in words is "two hundred sixty-one million, eighty-two thousand, three hundred seventy-three".