61734745 has 8 divisors (see below), whose sum is σ = 75296520. Its totient is φ = 48577920.

The previous prime is 61734731. The next prime is 61734749. The reversal of 61734745 is 54743716.

It can be written as a sum of positive squares in 4 ways, for example, as 143641 + 61591104 = 379^2 + 7848^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61734745 - 2²¹ = 59637593 is a prime.

It is a super-2 number, since 2×61734745² = 7622357480430050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61734749) 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 7 ways as a sum of consecutive naturals, for example, 100900 + ... + 101509.

It is an arithmetic number, because the mean of its divisors is an integer number (9412065).

Almost surely, 2^61734745 is an apocalyptic number.

It is an amenable number.

61734745 is a deficient number, since it is larger than the sum of its proper divisors (13561775).

61734745 is a wasteful number, since it uses less digits than its factorization.

61734745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202475.

The product of its digits is 70560, while the sum is 37.

The square root of 61734745 is about 7857.1461103889. The cubic root of 61734745 is about 395.2239183327.

The spelling of 61734745 in words is "sixty-one million, seven hundred thirty-four thousand, seven hundred forty-five".