720542153 has 2 divisors, whose sum is σ = 720542154. Its totient is φ = 720542152.

The previous prime is 720542143. The next prime is 720542171. The reversal of 720542153 is 351245027.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695271424 + 25270729 = 26368^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 720542153 - 2⁶ = 720542089 is a prime.

It is not a weakly prime, because it can be changed into another prime (720542143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360271076 + 360271077.

It is an arithmetic number, because the mean of its divisors is an integer number (360271077).

Almost surely, 2^720542153 is an apocalyptic number.

It is an amenable number.

720542153 is a deficient number, since it is larger than the sum of its proper divisors (1).

720542153 is an equidigital number, since it uses as much as digits as its factorization.

720542153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 720542153 is about 26842.9162536413. The cubic root of 720542153 is about 896.5058564836.

The spelling of 720542153 in words is "seven hundred twenty million, five hundred forty-two thousand, one hundred fifty-three".