361449469 has 2 divisors, whose sum is σ = 361449470. Its totient is φ = 361449468.

The previous prime is 361449467. The next prime is 361449547. The reversal of 361449469 is 964944163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354870244 + 6579225 = 18838^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 361449469 - 2¹ = 361449467 is a prime.

It is a super-2 number, since 2×361449469² = 261291437280763922, which contains 22 as substring.

Together with 361449467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361449463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180724734 + 180724735.

It is an arithmetic number, because the mean of its divisors is an integer number (180724735).

Almost surely, 2^361449469 is an apocalyptic number.

It is an amenable number.

361449469 is a deficient number, since it is larger than the sum of its proper divisors (1).

361449469 is an equidigital number, since it uses as much as digits as its factorization.

361449469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The square root of 361449469 is about 19011.8244521666. The cubic root of 361449469 is about 712.3321243559.

The spelling of 361449469 in words is "three hundred sixty-one million, four hundred forty-nine thousand, four hundred sixty-nine".