3612222157 has 2 divisors, whose sum is σ = 3612222158. Its totient is φ = 3612222156.

The previous prime is 3612222127. The next prime is 3612222193. The reversal of 3612222157 is 7512222163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2070796036 + 1541426121 = 45506^2 + 39261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3612222157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3612222127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806111078 + 1806111079.

It is an arithmetic number, because the mean of its divisors is an integer number (1806111079).

Almost surely, 2^3612222157 is an apocalyptic number.

It is an amenable number.

3612222157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3612222157 is an equidigital number, since it uses as much as digits as its factorization.

3612222157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 3612222157 is about 60101.7650073606. The cubic root of 3612222157 is about 1534.3513416141.

The spelling of 3612222157 in words is "three billion, six hundred twelve million, two hundred twenty-two thousand, one hundred fifty-seven".