4020513157 has 2 divisors, whose sum is σ = 4020513158. Its totient is φ = 4020513156.

The previous prime is 4020513149. The next prime is 4020513173. The reversal of 4020513157 is 7513150204.

It is a happy number.

4020513157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3833343396 + 187169761 = 61914^2 + 13681^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020513157 - 2³ = 4020513149 is a prime.

It is a super-2 number, since 2×4020513157² = 32329052091220213298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020513127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010256578 + 2010256579.

It is an arithmetic number, because the mean of its divisors is an integer number (2010256579).

Almost surely, 2^4020513157 is an apocalyptic number.

It is an amenable number.

4020513157 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020513157 is an equidigital number, since it uses as much as digits as its factorization.

4020513157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 4020513157 is about 63407.5165654672. The cubic root of 4020513157 is about 1590.1099770982.

The spelling of 4020513157 in words is "four billion, twenty million, five hundred thirteen thousand, one hundred fifty-seven".