61567141 has 4 divisors (see below), whose sum is σ = 61588000. Its totient is φ = 61546284.

The previous prime is 61567139. The next prime is 61567213. The reversal of 61567141 is 14176516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61567141 - 2¹ = 61567139 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 (61507141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (15397000).

Almost surely, 2^61567141 is an apocalyptic number.

It is an amenable number.

61567141 is a deficient number, since it is larger than the sum of its proper divisors (20859).

61567141 is a wasteful number, since it uses less digits than its factorization.

61567141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20858.

The product of its digits is 5040, while the sum is 31.

The square root of 61567141 is about 7846.4731567756. The cubic root of 61567141 is about 394.8659289686.

The spelling of 61567141 in words is "sixty-one million, five hundred sixty-seven thousand, one hundred forty-one".