61240567 has 4 divisors (see below), whose sum is σ = 61616440. Its totient is φ = 60864696.

The previous prime is 61240561. The next prime is 61240583. The reversal of 61240567 is 76504216.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61240567 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 (61240561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187692 + ... + 188017.

It is an arithmetic number, because the mean of its divisors is an integer number (15404110).

Almost surely, 2^61240567 is an apocalyptic number.

61240567 is a deficient number, since it is larger than the sum of its proper divisors (375873).

61240567 is a wasteful number, since it uses less digits than its factorization.

61240567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375872.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 61240567 is about 7825.6352457804. The cubic root of 61240567 is about 394.1665211235.

The spelling of 61240567 in words is "sixty-one million, two hundred forty thousand, five hundred sixty-seven".