20059157 has 2 divisors, whose sum is σ = 20059158. Its totient is φ = 20059156.

The previous prime is 20059141. The next prime is 20059163. The reversal of 20059157 is 75195002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16982641 + 3076516 = 4121^2 + 1754^2 .

It is a cyclic number.

It is not a de Polignac number, because 20059157 - 2⁴ = 20059141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20059187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029578 + 10029579.

It is an arithmetic number, because the mean of its divisors is an integer number (10029579).

Almost surely, 2^20059157 is an apocalyptic number.

It is an amenable number.

20059157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20059157 is an equidigital number, since it uses as much as digits as its factorization.

20059157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 20059157 is about 4478.7450251159. The cubic root of 20059157 is about 271.7091262293.

The spelling of 20059157 in words is "twenty million, fifty-nine thousand, one hundred fifty-seven".