361913 has 8 divisors (see below), whose sum is σ = 390600. Its totient is φ = 334080.

The previous prime is 361909. The next prime is 361919. The reversal of 361913 is 319163.

361913 = T₇₇ + T₇₈ + ... + T₁₃₇.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 316969 = 212^2 + 563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 361913 - 2² = 361909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (48825).

2³⁶¹⁹¹³ is an apocalyptic number.

It is an amenable number.

361913 is a deficient number, since it is larger than the sum of its proper divisors (28687).

361913 is a wasteful number, since it uses less digits than its factorization.

361913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its digits is 486, while the sum is 23.

The square root of 361913 is about 601.5920544688. The cubic root of 361913 is about 71.2636497907.

It can be divided in two parts, 3 and 61913, that added together give a palindrome (61916).

The spelling of 361913 in words is "three hundred sixty-one thousand, nine hundred thirteen".