61434539 has 2 divisors, whose sum is σ = 61434540. Its totient is φ = 61434538.

The previous prime is 61434497. The next prime is 61434601. The reversal of 61434539 is 93543416.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61434539 - 2¹² = 61430443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61434499 and 61434508.

It is not a weakly prime, because it can be changed into another prime (61434739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30717269 + 30717270.

It is an arithmetic number, because the mean of its divisors is an integer number (30717270).

Almost surely, 2^61434539 is an apocalyptic number.

61434539 is a deficient number, since it is larger than the sum of its proper divisors (1).

61434539 is an equidigital number, since it uses as much as digits as its factorization.

61434539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 61434539 is about 7838.0188185536. The cubic root of 61434539 is about 394.5822405880.

It can be divided in two parts, 614 and 34539, that added together give a palindrome (35153).

The spelling of 61434539 in words is "sixty-one million, four hundred thirty-four thousand, five hundred thirty-nine".