361017631 has 16 divisors (see below), whose sum is σ = 396622240. Its totient is φ = 328536000.

The previous prime is 361017623. The next prime is 361017649. The reversal of 361017631 is 136710163.

It is not a de Polignac number, because 361017631 - 2³ = 361017623 is a prime.

It is a super-2 number, since 2×361017631² = 260667459785704322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361017631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361017691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159256 + ... + 161506.

It is an arithmetic number, because the mean of its divisors is an integer number (24788890).

Almost surely, 2^361017631 is an apocalyptic number.

361017631 is a deficient number, since it is larger than the sum of its proper divisors (35604609).

361017631 is an equidigital number, since it uses as much as digits as its factorization.

361017631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 361017631 is about 19000.4639680193. The cubic root of 361017631 is about 712.0483275018.

Adding to 361017631 its reverse (136710163), we get a palindrome (497727794).

The spelling of 361017631 in words is "three hundred sixty-one million, seventeen thousand, six hundred thirty-one".