61676545 has 16 divisors (see below), whose sum is σ = 86313600. Its totient is φ = 42291312.

The previous prime is 61676509. The next prime is 61676567. The reversal of 61676545 is 54567616.

It is not a de Polignac number, because 61676545 - 2¹¹ = 61674497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 61676498 and 61676507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16267 + ... + 19696.

It is an arithmetic number, because the mean of its divisors is an integer number (5394600).

Almost surely, 2^61676545 is an apocalyptic number.

It is an amenable number.

61676545 is a deficient number, since it is larger than the sum of its proper divisors (24637055).

61676545 is an equidigital number, since it uses as much as digits as its factorization.

61676545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35989 (or 35975 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 61676545 is about 7853.4416022531. The cubic root of 61676545 is about 395.0996810863.

The spelling of 61676545 in words is "sixty-one million, six hundred seventy-six thousand, five hundred forty-five".