162444453 has 8 divisors (see below), whose sum is σ = 216683808. Its totient is φ = 108250704.

The previous prime is 162444449. The next prime is 162444481. The reversal of 162444453 is 354444261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162444453 - 2² = 162444449 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162444853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 18132.

It is an arithmetic number, because the mean of its divisors is an integer number (27085476).

Almost surely, 2^162444453 is an apocalyptic number.

It is an amenable number.

162444453 is a deficient number, since it is larger than the sum of its proper divisors (54239355).

162444453 is a wasteful number, since it uses less digits than its factorization.

162444453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22803.

The product of its digits is 46080, while the sum is 33.

The square root of 162444453 is about 12745.3698651706. The cubic root of 162444453 is about 545.6342563927.

The spelling of 162444453 in words is "one hundred sixty-two million, four hundred forty-four thousand, four hundred fifty-three".