61136951 has 4 divisors (see below), whose sum is σ = 61177872. Its totient is φ = 61096032.

The previous prime is 61136941. The next prime is 61136953. The reversal of 61136951 is 15963116.

It is a happy number.

61136951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61136951 - 2¹⁴ = 61120567 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61136953) 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 3 ways as a sum of consecutive naturals, for example, 18131 + ... + 21236.

It is an arithmetic number, because the mean of its divisors is an integer number (15294468).

Almost surely, 2^61136951 is an apocalyptic number.

61136951 is a deficient number, since it is larger than the sum of its proper divisors (40921).

61136951 is a wasteful number, since it uses less digits than its factorization.

61136951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40920.

The product of its digits is 4860, while the sum is 32.

The square root of 61136951 is about 7819.0121498819. The cubic root of 61136951 is about 393.9440922330.

The spelling of 61136951 in words is "sixty-one million, one hundred thirty-six thousand, nine hundred fifty-one".