361635401 has 2 divisors, whose sum is σ = 361635402. Its totient is φ = 361635400.

The previous prime is 361635383. The next prime is 361635413. The reversal of 361635401 is 104536163.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264908176 + 96727225 = 16276^2 + 9835^2 .

It is an emirp because it is prime and its reverse (104536163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361635401 - 2¹⁴ = 361619017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (361635431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180817700 + 180817701.

It is an arithmetic number, because the mean of its divisors is an integer number (180817701).

Almost surely, 2^361635401 is an apocalyptic number.

It is an amenable number.

361635401 is a deficient number, since it is larger than the sum of its proper divisors (1).

361635401 is an equidigital number, since it uses as much as digits as its factorization.

361635401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 361635401 is about 19016.7137276660. The cubic root of 361635401 is about 712.4542462053.

The spelling of 361635401 in words is "three hundred sixty-one million, six hundred thirty-five thousand, four hundred one".