61354545 has 32 divisors (see below), whose sum is σ = 112512000. Its totient is φ = 27967680.

The previous prime is 61354543. The next prime is 61354561. The reversal of 61354545 is 54545316.

It is not a de Polignac number, because 61354545 - 2¹ = 61354543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61354541) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 51810 + ... + 52980.

It is an arithmetic number, because the mean of its divisors is an integer number (3516000).

Almost surely, 2^61354545 is an apocalyptic number.

It is an amenable number.

61354545 is a deficient number, since it is larger than the sum of its proper divisors (51157455).

61354545 is a wasteful number, since it uses less digits than its factorization.

61354545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685.

The product of its digits is 36000, while the sum is 33.

The square root of 61354545 is about 7832.9142086455. The cubic root of 61354545 is about 394.4109041698.

The spelling of 61354545 in words is "sixty-one million, three hundred fifty-four thousand, five hundred forty-five".