61152061 has 4 divisors (see below), whose sum is σ = 61197724. Its totient is φ = 61106400.

The previous prime is 61152059. The next prime is 61152067. The reversal of 61152061 is 16025116.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 41036836 = 4485^2 + 6406^2 .

It is a cyclic number.

It is not a de Polignac number, because 61152061 - 2¹ = 61152059 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 (61152067) 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, 20760 + ... + 23521.

It is an arithmetic number, because the mean of its divisors is an integer number (15299431).

Almost surely, 2^61152061 is an apocalyptic number.

It is an amenable number.

61152061 is a deficient number, since it is larger than the sum of its proper divisors (45663).

61152061 is a wasteful number, since it uses less digits than its factorization.

61152061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45662.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 61152061 is about 7819.9783247781. The cubic root of 61152061 is about 393.9765439926.

Adding to 61152061 its reverse (16025116), we get a palindrome (77177177).

The spelling of 61152061 in words is "sixty-one million, one hundred fifty-two thousand, sixty-one".