361072397449 has 3 divisors (see below), whose sum is σ = 361072998343. Its totient is φ = 361071796556.

The previous prime is 361072397423. The next prime is 361072397461. The reversal of 361072397449 is 944793270163.

The square root of 361072397449 is 600893.

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.

It can be written as a sum of positive squares in only one way, i.e., 353032047225 + 8040350224 = 594165^2 + 89668^2 .

It is not a de Polignac number, because 361072397449 - 2⁵ = 361072397417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361072397449.

It is not an unprimeable number, because it can be changed into a prime (361072397479) 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, 300447 + ... + 901339.

Almost surely, 2^361072397449 is an apocalyptic number.

361072397449 is the 600893-rd square number.

361072397449 is the 300447-th centered octagonal number.

It is an amenable number.

361072397449 is a deficient number, since it is larger than the sum of its proper divisors (600894).

361072397449 is an frugal number, since it uses more digits than its factorization.

361072397449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201786 (or 600893 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 361072397449 in words is "three hundred sixty-one billion, seventy-two million, three hundred ninety-seven thousand, four hundred forty-nine".