61416549 has 36 divisors (see below), whose sum is σ = 95423328. Its totient is φ = 39472920.

The previous prime is 61416541. The next prime is 61416629. The reversal of 61416549 is 94561416.

It is not a de Polignac number, because 61416549 - 2³ = 61416541 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61416541) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233392 + ... + 233654.

It is an arithmetic number, because the mean of its divisors is an integer number (2650648).

Almost surely, 2^61416549 is an apocalyptic number.

It is an amenable number.

61416549 is a deficient number, since it is larger than the sum of its proper divisors (34006779).

61416549 is an equidigital number, since it uses as much as digits as its factorization.

61416549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 297 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 61416549 is about 7836.8711230950. The cubic root of 61416549 is about 394.5437213900.

The spelling of 61416549 in words is "sixty-one million, four hundred sixteen thousand, five hundred forty-nine".