361389261 has 8 divisors (see below), whose sum is σ = 482285920. Its totient is φ = 240709392.

The previous prime is 361389241. The next prime is 361389269. The reversal of 361389261 is 162983163.

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

It is not a de Polignac number, because 361389261 - 2⁵ = 361389229 is a prime.

It is a super-2 number, since 2×361389261² = 261204395932252242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361389269) 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, 50266 + ... + 57003.

It is an arithmetic number, because the mean of its divisors is an integer number (60285740).

Almost surely, 2^361389261 is an apocalyptic number.

It is an amenable number.

361389261 is a deficient number, since it is larger than the sum of its proper divisors (120896659).

361389261 is a wasteful number, since it uses less digits than its factorization.

361389261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108395.

The product of its digits is 46656, while the sum is 39.

The square root of 361389261 is about 19010.2409506034. The cubic root of 361389261 is about 712.2925702110.

The spelling of 361389261 in words is "three hundred sixty-one million, three hundred eighty-nine thousand, two hundred sixty-one".