61157671 has 4 divisors (see below), whose sum is σ = 61191000. Its totient is φ = 61124344.

The previous prime is 61157641. The next prime is 61157693. The reversal of 61157671 is 17675116.

61157671 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 61157671 - 2⁵ = 61157639 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 (61157641) 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, 13741 + ... + 17638.

It is an arithmetic number, because the mean of its divisors is an integer number (15297750).

Almost surely, 2^61157671 is an apocalyptic number.

61157671 is a deficient number, since it is larger than the sum of its proper divisors (33329).

61157671 is a wasteful number, since it uses less digits than its factorization.

61157671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33328.

The product of its digits is 8820, while the sum is 34.

The square root of 61157671 is about 7820.3370131983. The cubic root of 61157671 is about 393.9885912335.

The spelling of 61157671 in words is "sixty-one million, one hundred fifty-seven thousand, six hundred seventy-one".