61403266 has 8 divisors (see below), whose sum is σ = 95281020. Its totient is φ = 29642928.

The previous prime is 61403257. The next prime is 61403299. The reversal of 61403266 is 66230416.

It can be written as a sum of positive squares in 2 ways, for example, as 61168041 + 235225 = 7821^2 + 485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61403266² = 7540722150933512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529281 + ... + 529396.

Almost surely, 2^61403266 is an apocalyptic number.

61403266 is a deficient number, since it is larger than the sum of its proper divisors (33877754).

61403266 is a wasteful number, since it uses less digits than its factorization.

61403266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058708.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 61403266 is about 7836.0236089486. The cubic root of 61403266 is about 394.5152757338.

The spelling of 61403266 in words is "sixty-one million, four hundred three thousand, two hundred sixty-six".