61151212 has 12 divisors (see below), whose sum is σ = 107607136. Its totient is φ = 30406320.

The previous prime is 61151191. The next prime is 61151221. The reversal of 61151212 is 21215116.

It is a self number, because there is not a number n which added to its sum of digits gives 61151212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41508 + ... + 42955.

Almost surely, 2^61151212 is an apocalyptic number.

It is an amenable number.

61151212 is a deficient number, since it is larger than the sum of its proper divisors (46455924).

61151212 is a wasteful number, since it uses less digits than its factorization.

61151212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84648 (or 84646 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 61151212 is about 7819.9240405518. The cubic root of 61151212 is about 393.9747207363.

Adding to 61151212 its reverse (21215116), we get a palindrome (82366328).

It can be divided in two parts, 611512 and 12, that added together give a square (611524 = 782²).

The spelling of 61151212 in words is "sixty-one million, one hundred fifty-one thousand, two hundred twelve".