61216153 has 2 divisors, whose sum is σ = 61216154. Its totient is φ = 61216152.

The previous prime is 61216063. The next prime is 61216163. The reversal of 61216153 is 35161216.

61216153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58247424 + 2968729 = 7632^2 + 1723^2 .

It is a cyclic number.

It is not a de Polignac number, because 61216153 - 2¹³ = 61207961 is a prime.

It is not a weakly prime, because it can be changed into another prime (61216163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30608076 + 30608077.

It is an arithmetic number, because the mean of its divisors is an integer number (30608077).

Almost surely, 2^61216153 is an apocalyptic number.

It is an amenable number.

61216153 is a deficient number, since it is larger than the sum of its proper divisors (1).

61216153 is an equidigital number, since it uses as much as digits as its factorization.

61216153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 61216153 is about 7824.0752169186. The cubic root of 61216153 is about 394.1141350392.

Adding to 61216153 its reverse (35161216), we get a palindrome (96377369).

The spelling of 61216153 in words is "sixty-one million, two hundred sixteen thousand, one hundred fifty-three".