61254133 has 2 divisors, whose sum is σ = 61254134. Its totient is φ = 61254132.

The previous prime is 61254101. The next prime is 61254139. The reversal of 61254133 is 33145216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59013124 + 2241009 = 7682^2 + 1497^2 .

It is a cyclic number.

It is not a de Polignac number, because 61254133 - 2⁵ = 61254101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61254098 and 61254107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61254139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627066 + 30627067.

It is an arithmetic number, because the mean of its divisors is an integer number (30627067).

Almost surely, 2^61254133 is an apocalyptic number.

It is an amenable number.

61254133 is a deficient number, since it is larger than the sum of its proper divisors (1).

61254133 is an equidigital number, since it uses as much as digits as its factorization.

61254133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 61254133 is about 7826.5019644794. The cubic root of 61254133 is about 394.1956242082.

Adding to 61254133 its reverse (33145216), we get a palindrome (94399349).

It can be divided in two parts, 612 and 54133, that added together give a palindrome (54745).

The spelling of 61254133 in words is "sixty-one million, two hundred fifty-four thousand, one hundred thirty-three".