722161453 has 8 divisors (see below), whose sum is σ = 777924000. Its totient is φ = 666429168.

The previous prime is 722161421. The next prime is 722161459. The reversal of 722161453 is 354161227.

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

It is a cyclic number.

It is not a de Polignac number, because 722161453 - 2⁵ = 722161421 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 (722161459) 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, 77478 + ... + 86296.

It is an arithmetic number, because the mean of its divisors is an integer number (97240500).

Almost surely, 2^722161453 is an apocalyptic number.

It is an amenable number.

722161453 is a deficient number, since it is larger than the sum of its proper divisors (55762547).

722161453 is a wasteful number, since it uses less digits than its factorization.

722161453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131.

The product of its digits is 10080, while the sum is 31.

The square root of 722161453 is about 26873.0618463918. The cubic root of 722161453 is about 897.1769371823.

The spelling of 722161453 in words is "seven hundred twenty-two million, one hundred sixty-one thousand, four hundred fifty-three".