61453510229 has 4 divisors (see below), whose sum is σ = 62613010476. Its totient is φ = 60294009984.

The previous prime is 61453510201. The next prime is 61453510247. The reversal of 61453510229 is 92201535416.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42745562500 + 18707947729 = 206750^2 + 136777^2 .

It is a cyclic number.

It is not a de Polignac number, because 61453510229 - 2²⁴ = 61436733013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61453510192 and 61453510201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61453510429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579750044 + ... + 579750149.

It is an arithmetic number, because the mean of its divisors is an integer number (15653252619).

Almost surely, 2^61453510229 is an apocalyptic number.

It is an amenable number.

61453510229 is a deficient number, since it is larger than the sum of its proper divisors (1159500247).

61453510229 is a wasteful number, since it uses less digits than its factorization.

61453510229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159500246.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 61453510229 in words is "sixty-one billion, four hundred fifty-three million, five hundred ten thousand, two hundred twenty-nine".