361542133 has 4 divisors (see below), whose sum is σ = 371313580. Its totient is φ = 351770688.

The previous prime is 361542121. The next prime is 361542161. The reversal of 361542133 is 331245163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331245163 = 29 ⋅11422247.

It can be written as a sum of positive squares in 2 ways, for example, as 288388324 + 73153809 = 16982^2 + 8553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361542133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361542113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4885668 + ... + 4885741.

It is an arithmetic number, because the mean of its divisors is an integer number (92828395).

Almost surely, 2^361542133 is an apocalyptic number.

It is an amenable number.

361542133 is a deficient number, since it is larger than the sum of its proper divisors (9771447).

361542133 is an equidigital number, since it uses as much as digits as its factorization.

361542133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9771446.

The product of its digits is 6480, while the sum is 28.

The square root of 361542133 is about 19014.2613056621. The cubic root of 361542133 is about 712.3929921578.

Adding to 361542133 its reverse (331245163), we get a palindrome (692787296).

It can be divided in two parts, 361542 and 133, that added together give a triangular number (361675 = T₈₅₀).

The spelling of 361542133 in words is "three hundred sixty-one million, five hundred forty-two thousand, one hundred thirty-three".