61612151 has 2 divisors, whose sum is σ = 61612152. Its totient is φ = 61612150.

The previous prime is 61612139. The next prime is 61612157. The reversal of 61612151 is 15121616.

61612151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61612151 - 2¹⁰ = 61611127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61612157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30806075 + 30806076.

It is an arithmetic number, because the mean of its divisors is an integer number (30806076).

Almost surely, 2^61612151 is an apocalyptic number.

61612151 is a deficient number, since it is larger than the sum of its proper divisors (1).

61612151 is an equidigital number, since it uses as much as digits as its factorization.

61612151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

The square root of 61612151 is about 7849.3408003475. The cubic root of 61612151 is about 394.9621306429.

Adding to 61612151 its reverse (15121616), we get a palindrome (76733767).

The spelling of 61612151 in words is "sixty-one million, six hundred twelve thousand, one hundred fifty-one".