61116357 has 4 divisors (see below), whose sum is σ = 81488480. Its totient is φ = 40744236.

The previous prime is 61116353. The next prime is 61116379. The reversal of 61116357 is 75361116.

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 not a de Polignac number, because 61116357 - 2² = 61116353 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 (61116353) 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, 10186057 + ... + 10186062.

It is an arithmetic number, because the mean of its divisors is an integer number (20372120).

Almost surely, 2^61116357 is an apocalyptic number.

It is an amenable number.

61116357 is a deficient number, since it is larger than the sum of its proper divisors (20372123).

61116357 is a wasteful number, since it uses less digits than its factorization.

61116357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20372122.

The product of its digits is 3780, while the sum is 30.

The square root of 61116357 is about 7817.6951206861. The cubic root of 61116357 is about 393.8998538707.

The spelling of 61116357 in words is "sixty-one million, one hundred sixteen thousand, three hundred fifty-seven".