601138 has 4 divisors (see below), whose sum is σ = 901710. Its totient is φ = 300568.

The previous prime is 601127. The next prime is 601147. The reversal of 601138 is 831106.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831106 = 2 ⋅415553.

It can be written as a sum of positive squares in only one way, i.e., 494209 + 106929 = 703^2 + 327^2 .

It is a super-2 number, since 2×601138² = 722733790088, which contains 22 as substring.

It is an unprimeable number.

601138 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150283 + ... + 150286.

2⁶⁰¹¹³⁸ is an apocalyptic number.

601138 is a deficient number, since it is larger than the sum of its proper divisors (300572).

601138 is a wasteful number, since it uses less digits than its factorization.

601138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300571.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 601138 is about 775.3308971014. The cubic root of 601138 is about 84.3965565406.

The spelling of 601138 in words is "six hundred one thousand, one hundred thirty-eight".