61312226 has 4 divisors (see below), whose sum is σ = 91968342. Its totient is φ = 30656112.

The previous prime is 61312201. The next prime is 61312243. The reversal of 61312226 is 62221316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 2253001 = 7685^2 + 1501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15328055 + ... + 15328058.

Almost surely, 2^61312226 is an apocalyptic number.

61312226 is a deficient number, since it is larger than the sum of its proper divisors (30656116).

61312226 is a wasteful number, since it uses less digits than its factorization.

61312226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30656115.

The product of its digits is 864, while the sum is 23.

The square root of 61312226 is about 7830.2123853699. The cubic root of 61312226 is about 394.3202023098.

The spelling of 61312226 in words is "sixty-one million, three hundred twelve thousand, two hundred twenty-six".