61135206 has 32 divisors (see below), whose sum is σ = 133705728. Its totient is φ = 18481440.

The previous prime is 61135201. The next prime is 61135231. The reversal of 61135206 is 60253116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61135201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35931 + ... + 37593.

It is an arithmetic number, because the mean of its divisors is an integer number (4178304).

Almost surely, 2^61135206 is an apocalyptic number.

61135206 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61135206 is an abundant number, since it is smaller than the sum of its proper divisors (72570522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61135206 is a wasteful number, since it uses less digits than its factorization.

61135206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61135206 is about 7818.9005620995. The cubic root of 61135206 is about 393.9403441506.

The spelling of 61135206 in words is "sixty-one million, one hundred thirty-five thousand, two hundred six".