61121567 has 8 divisors (see below), whose sum is σ = 65884224. Its totient is φ = 56367648.

The previous prime is 61121563. The next prime is 61121569. The reversal of 61121567 is 76512116.

61121567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61121567 - 2² = 61121563 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 (61121563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24458 + ... + 26840.

It is an arithmetic number, because the mean of its divisors is an integer number (8235528).

Almost surely, 2^61121567 is an apocalyptic number.

61121567 is a deficient number, since it is larger than the sum of its proper divisors (4762657).

61121567 is a wasteful number, since it uses less digits than its factorization.

61121567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369.

The product of its digits is 2520, while the sum is 29.

The square root of 61121567 is about 7818.0283320029. The cubic root of 61121567 is about 393.9110465095.

The spelling of 61121567 in words is "sixty-one million, one hundred twenty-one thousand, five hundred sixty-seven".