361951 has 4 divisors (see below), whose sum is σ = 377712. Its totient is φ = 346192.

The previous prime is 361943. The next prime is 361961. The reversal of 361951 is 159163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159163 = 19 ⋅8377.

It is a cyclic number.

It is not a de Polignac number, because 361951 - 2³ = 361943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361901) 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, 7846 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (94428).

2³⁶¹⁹⁵¹ is an apocalyptic number.

361951 is the 381-st centered pentagonal number.

361951 is a deficient number, since it is larger than the sum of its proper divisors (15761).

361951 is a wasteful number, since it uses less digits than its factorization.

361951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15760.

The product of its digits is 810, while the sum is 25.

The square root of 361951 is about 601.6236365038. The cubic root of 361951 is about 71.2661438744.

The spelling of 361951 in words is "three hundred sixty-one thousand, nine hundred fifty-one".