61403141245 has 8 divisors (see below), whose sum is σ = 78018108984. Its totient is φ = 46232953344.

The previous prime is 61403141243. The next prime is 61403141249. The reversal of 61403141245 is 54214130416.

It can be written as a sum of positive squares in 4 ways, for example, as 22768093881 + 38635047364 = 150891^2 + 196558^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61403141245 - 2¹ = 61403141243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403141243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361194864 + ... + 361195033.

It is an arithmetic number, because the mean of its divisors is an integer number (9752263623).

Almost surely, 2^61403141245 is an apocalyptic number.

It is an amenable number.

61403141245 is a deficient number, since it is larger than the sum of its proper divisors (16614967739).

61403141245 is a wasteful number, since it uses less digits than its factorization.

61403141245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722389919.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 61403141245 in words is "sixty-one billion, four hundred three million, one hundred forty-one thousand, two hundred forty-five".