61512226 has 16 divisors (see below), whose sum is σ = 93542400. Its totient is φ = 30334608.

The previous prime is 61512223. The next prime is 61512247. The reversal of 61512226 is 62221516.

It is a self number, because there is not a number n which added to its sum of digits gives 61512226.

It is not an unprimeable number, because it can be changed into a prime (61512223) 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, 47455 + ... + 48733.

It is an arithmetic number, because the mean of its divisors is an integer number (5846400).

Almost surely, 2^61512226 is an apocalyptic number.

61512226 is a deficient number, since it is larger than the sum of its proper divisors (32030174).

61512226 is a wasteful number, since it uses less digits than its factorization.

61512226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its digits is 1440, while the sum is 25.

The square root of 61512226 is about 7842.9730332317. The cubic root of 61512226 is about 394.7484934211.

The spelling of 61512226 in words is "sixty-one million, five hundred twelve thousand, two hundred twenty-six".