361874549 has 2 divisors, whose sum is σ = 361874550. Its totient is φ = 361874548.

The previous prime is 361874537. The next prime is 361874561. The reversal of 361874549 is 945478163.

It is a balanced prime because it is at equal distance from previous prime (361874537) and next prime (361874561).

It can be written as a sum of positive squares in only one way, i.e., 310393924 + 51480625 = 17618^2 + 7175^2 .

It is a cyclic number.

It is not a de Polignac number, because 361874549 - 2⁴ = 361874533 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361870549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180937274 + 180937275.

It is an arithmetic number, because the mean of its divisors is an integer number (180937275).

Almost surely, 2^361874549 is an apocalyptic number.

It is an amenable number.

361874549 is a deficient number, since it is larger than the sum of its proper divisors (1).

361874549 is an equidigital number, since it uses as much as digits as its factorization.

361874549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 361874549 is about 19023.0005256794. Note that the first 3 decimals coincide. The cubic root of 361874549 is about 712.6112592851.

The spelling of 361874549 in words is "three hundred sixty-one million, eight hundred seventy-four thousand, five hundred forty-nine".