916212361 has 3 divisors (see below), whose sum is σ = 916242631. Its totient is φ = 916182092.

The previous prime is 916212359. The next prime is 916212379. The reversal of 916212361 is 163212619.

The square root of 916212361 is 30269.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 163212619 = 1499 ⋅108881.

It can be written as a sum of positive squares in only one way, i.e., 757955961 + 158256400 = 27531^2 + 12580^2 .

It is not a de Polignac number, because 916212361 - 2¹ = 916212359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916212301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15135 + ... + 45403.

Almost surely, 2^916212361 is an apocalyptic number.

916212361 is the 30269-th square number.

916212361 is the 15135-th centered octagonal number.

It is an amenable number.

916212361 is a deficient number, since it is larger than the sum of its proper divisors (30270).

916212361 is an frugal number, since it uses more digits than its factorization.

916212361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60538 (or 30269 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The cubic root of 916212361 is about 971.2522746300.

The spelling of 916212361 in words is "nine hundred sixteen million, two hundred twelve thousand, three hundred sixty-one".