180222549 has 32 divisors (see below), whose sum is σ = 271294464. Its totient is φ = 105589440.

The previous prime is 180222547. The next prime is 180222551. The reversal of 180222549 is 945222081.

It is an interprime number because it is at equal distance from previous prime (180222547) and next prime (180222551).

It is not a de Polignac number, because 180222549 - 2¹ = 180222547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180222547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296604 + ... + 297210.

It is an arithmetic number, because the mean of its divisors is an integer number (8477952).

Almost surely, 2^180222549 is an apocalyptic number.

It is an amenable number.

180222549 is a deficient number, since it is larger than the sum of its proper divisors (91071915).

180222549 is a wasteful number, since it uses less digits than its factorization.

180222549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 180222549 is about 13424.6992145076. The cubic root of 180222549 is about 564.8542177463.

The spelling of 180222549 in words is "one hundred eighty million, two hundred twenty-two thousand, five hundred forty-nine".