61126090 has 32 divisors (see below), whose sum is σ = 112188240. Its totient is φ = 23975424.

The previous prime is 61126073. The next prime is 61126099. The reversal of 61126090 is 9062116.

It can be written as a sum of positive squares in 8 ways, for example, as 36036009 + 25090081 = 6003^2 + 5009^2 .

It is not an unprimeable number, because it can be changed into a prime (61126099) 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, 153772 + ... + 154168.

Almost surely, 2^61126090 is an apocalyptic number.

61126090 is a deficient number, since it is larger than the sum of its proper divisors (51062150).

61126090 is a wasteful number, since it uses less digits than its factorization.

61126090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 61126090 is about 7818.3175939584. The cubic root of 61126090 is about 393.9207627510.

The spelling of 61126090 in words is "sixty-one million, one hundred twenty-six thousand, ninety".