361877141 has 4 divisors (see below), whose sum is σ = 363033612. Its totient is φ = 360720672.

The previous prime is 361877137. The next prime is 361877161. The reversal of 361877141 is 141778163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141778163 = 443 ⋅320041.

It can be written as a sum of positive squares in 2 ways, for example, as 4289041 + 357588100 = 2071^2 + 18910^2 .

It is a cyclic number.

It is not a de Polignac number, because 361877141 - 2² = 361877137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361877095 and 361877104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361877161) 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, 577766 + ... + 578391.

It is an arithmetic number, because the mean of its divisors is an integer number (90758403).

Almost surely, 2^361877141 is an apocalyptic number.

It is an amenable number.

361877141 is a deficient number, since it is larger than the sum of its proper divisors (1156471).

361877141 is a wasteful number, since it uses less digits than its factorization.

361877141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156470.

The product of its digits is 28224, while the sum is 38.

The square root of 361877141 is about 19023.0686536111. The cubic root of 361877141 is about 712.6129606887.

The spelling of 361877141 in words is "three hundred sixty-one million, eight hundred seventy-seven thousand, one hundred forty-one".