361429261 has 2 divisors, whose sum is σ = 361429262. Its totient is φ = 361429260.

The previous prime is 361429259. The next prime is 361429379. The reversal of 361429261 is 162924163.

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., 216972900 + 144456361 = 14730^2 + 12019^2 .

It is an emirp because it is prime and its reverse (162924163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361429261 - 2¹ = 361429259 is a prime.

It is a super-2 number, since 2×361429261² = 261262221414012242, which contains 22 as substring.

Together with 361429259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361429561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180714630 + 180714631.

It is an arithmetic number, because the mean of its divisors is an integer number (180714631).

Almost surely, 2^361429261 is an apocalyptic number.

It is an amenable number.

361429261 is a deficient number, since it is larger than the sum of its proper divisors (1).

361429261 is an equidigital number, since it uses as much as digits as its factorization.

361429261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 361429261 is about 19011.2929860123. The cubic root of 361429261 is about 712.3188490325.

The spelling of 361429261 in words is "three hundred sixty-one million, four hundred twenty-nine thousand, two hundred sixty-one".