361138 has 4 divisors (see below), whose sum is σ = 541710. Its totient is φ = 180568.

The previous prime is 361111. The next prime is 361159. The reversal of 361138 is 831163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 263169 + 97969 = 513^2 + 313^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90283 + ... + 90286.

2³⁶¹¹³⁸ is an apocalyptic number.

361138 is a deficient number, since it is larger than the sum of its proper divisors (180572).

361138 is a wasteful number, since it uses less digits than its factorization.

361138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180571.

The product of its digits is 432, while the sum is 22.

The square root of 361138 is about 600.9475850688. The cubic root of 361138 is about 71.2127454774.

The spelling of 361138 in words is "three hundred sixty-one thousand, one hundred thirty-eight".