350138 has 4 divisors (see below), whose sum is σ = 525210. Its totient is φ = 175068.

The previous prime is 350137. The next prime is 350159. The reversal of 350138 is 831053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831053 = 29 ⋅28657.

It can be written as a sum of positive squares in only one way, i.e., 284089 + 66049 = 533^2 + 257^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (350137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87533 + ... + 87536.

2³⁵⁰¹³⁸ is an apocalyptic number.

350138 is a deficient number, since it is larger than the sum of its proper divisors (175072).

350138 is a wasteful number, since it uses less digits than its factorization.

350138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175071.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 350138 is about 591.7245981029. The cubic root of 350138 is about 70.4822482677.

The spelling of 350138 in words is "three hundred fifty thousand, one hundred thirty-eight".