61540606 has 16 divisors (see below), whose sum is σ = 93948624. Its totient is φ = 30227904.

The previous prime is 61540553. The next prime is 61540607. The reversal of 61540606 is 60604516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61540607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44136 + ... + 45508.

It is an arithmetic number, because the mean of its divisors is an integer number (5871789).

Almost surely, 2^61540606 is an apocalyptic number.

61540606 is a deficient number, since it is larger than the sum of its proper divisors (32408018).

61540606 is a wasteful number, since it uses less digits than its factorization.

61540606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 61540606 is about 7844.7820874770. The cubic root of 61540606 is about 394.8091926810.

The spelling of 61540606 in words is "sixty-one million, five hundred forty thousand, six hundred six".