612215061 has 8 divisors (see below), whose sum is σ = 838348704. Its totient is φ = 397112400.

The previous prime is 612215053. The next prime is 612215077. The reversal of 612215061 is 160512216.

612215061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 612215061 - 2³ = 612215053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612215041) 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, 2757615 + ... + 2757836.

It is an arithmetic number, because the mean of its divisors is an integer number (104793588).

Almost surely, 2^612215061 is an apocalyptic number.

It is an amenable number.

612215061 is a deficient number, since it is larger than the sum of its proper divisors (226133643).

612215061 is a wasteful number, since it uses less digits than its factorization.

612215061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515491.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 612215061 is about 24742.9800347493. The cubic root of 612215061 is about 849.1179135369.

Adding to 612215061 its reverse (160512216), we get a palindrome (772727277).

It can be divided in two parts, 61 and 2215061, that added together give a palindrome (2215122).

The spelling of 612215061 in words is "six hundred twelve million, two hundred fifteen thousand, sixty-one".