4015197157 has 2 divisors, whose sum is σ = 4015197158. Its totient is φ = 4015197156.

The previous prime is 4015197143. The next prime is 4015197217. The reversal of 4015197157 is 7517915104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3923017956 + 92179201 = 62634^2 + 9601^2 .

It is a cyclic number.

It is not a de Polignac number, because 4015197157 - 2¹¹ = 4015195109 is a prime.

It is a super-2 number, since 2×4015197157² = 32243616419161765298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4015197107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007598578 + 2007598579.

It is an arithmetic number, because the mean of its divisors is an integer number (2007598579).

Almost surely, 2^4015197157 is an apocalyptic number.

It is an amenable number.

4015197157 is a deficient number, since it is larger than the sum of its proper divisors (1).

4015197157 is an equidigital number, since it uses as much as digits as its factorization.

4015197157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 40.

The square root of 4015197157 is about 63365.5833793077. The cubic root of 4015197157 is about 1589.4088433016.

The spelling of 4015197157 in words is "four billion, fifteen million, one hundred ninety-seven thousand, one hundred fifty-seven".