61857134 has 32 divisors (see below), whose sum is σ = 98461440. Its totient is φ = 29115072.

The previous prime is 61857127. The next prime is 61857139. The reversal of 61857134 is 43175816.

It is a junction number, because it is equal to n+sod(n) for n = 61857094 and 61857103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61857139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370319 + ... + 370485.

It is an arithmetic number, because the mean of its divisors is an integer number (3076920).

Almost surely, 2^61857134 is an apocalyptic number.

61857134 is a deficient number, since it is larger than the sum of its proper divisors (36604306).

61857134 is a wasteful number, since it uses less digits than its factorization.

61857134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its digits is 20160, while the sum is 35.

The square root of 61857134 is about 7864.9306417794. The cubic root of 61857134 is about 395.4849227861.

The spelling of 61857134 in words is "sixty-one million, eight hundred fifty-seven thousand, one hundred thirty-four".