162224551 has 4 divisors (see below), whose sum is σ = 162575392. Its totient is φ = 161873712.

The previous prime is 162224549. The next prime is 162224611. The reversal of 162224551 is 155422261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155422261 = 19 ⋅8180119.

It is a cyclic number.

It is not a de Polignac number, because 162224551 - 2¹ = 162224549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162224501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174726 + ... + 175651.

It is an arithmetic number, because the mean of its divisors is an integer number (40643848).

Almost surely, 2^162224551 is an apocalyptic number.

162224551 is a deficient number, since it is larger than the sum of its proper divisors (350841).

162224551 is an equidigital number, since it uses as much as digits as its factorization.

162224551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350840.

The product of its digits is 4800, while the sum is 28.

The square root of 162224551 is about 12736.7402030504. The cubic root of 162224551 is about 545.3879357895.

The spelling of 162224551 in words is "one hundred sixty-two million, two hundred twenty-four thousand, five hundred fifty-one".