720153161 has 32 divisors (see below), whose sum is σ = 928531968. Its totient is φ = 542868480.

The previous prime is 720153149. The next prime is 720153179. The reversal of 720153161 is 161351027.

720153161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 720153161 - 2¹⁸ = 719891017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720153161.

It is not an unprimeable number, because it can be changed into a prime (720153101) 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, 704831 + ... + 705851.

It is an arithmetic number, because the mean of its divisors is an integer number (29016624).

Almost surely, 2^720153161 is an apocalyptic number.

It is an amenable number.

720153161 is a deficient number, since it is larger than the sum of its proper divisors (208378807).

720153161 is a wasteful number, since it uses less digits than its factorization.

720153161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 720153161 is about 26835.6695649652. The cubic root of 720153161 is about 896.3444981789.

The spelling of 720153161 in words is "seven hundred twenty million, one hundred fifty-three thousand, one hundred sixty-one".