61255135 has 8 divisors (see below), whose sum is σ = 73575216. Its totient is φ = 48958080.

The previous prime is 61255133. The next prime is 61255151. The reversal of 61255135 is 53155216.

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

It is not a de Polignac number, because 61255135 - 2¹ = 61255133 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 (61255133) 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, 775 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (9196902).

Almost surely, 2^61255135 is an apocalyptic number.

61255135 is a deficient number, since it is larger than the sum of its proper divisors (12320081).

61255135 is a wasteful number, since it uses less digits than its factorization.

61255135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513.

The product of its digits is 4500, while the sum is 28.

The square root of 61255135 is about 7826.5659774897. The cubic root of 61255135 is about 394.1977736243.

The spelling of 61255135 in words is "sixty-one million, two hundred fifty-five thousand, one hundred thirty-five".