61405153 has 2 divisors, whose sum is σ = 61405154. Its totient is φ = 61405152.

The previous prime is 61405133. The next prime is 61405159. The reversal of 61405153 is 35150416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58247424 + 3157729 = 7632^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 61405153 - 2²¹ = 59308001 is a prime.

It is not a weakly prime, because it can be changed into another prime (61405159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30702576 + 30702577.

It is an arithmetic number, because the mean of its divisors is an integer number (30702577).

Almost surely, 2^61405153 is an apocalyptic number.

It is an amenable number.

61405153 is a deficient number, since it is larger than the sum of its proper divisors (1).

61405153 is an equidigital number, since it uses as much as digits as its factorization.

61405153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 61405153 is about 7836.1440134801. The cubic root of 61405153 is about 394.5193170102.

Adding to 61405153 its reverse (35150416), we get a palindrome (96555569).

The spelling of 61405153 in words is "sixty-one million, four hundred five thousand, one hundred fifty-three".