20010157 has 2 divisors, whose sum is σ = 20010158. Its totient is φ = 20010156.

The previous prime is 20010127. The next prime is 20010187. The reversal of 20010157 is 75101002.

It is a balanced prime because it is at equal distance from previous prime (20010127) and next prime (20010187).

It can be written as a sum of positive squares in only one way, i.e., 11634921 + 8375236 = 3411^2 + 2894^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010157 - 2¹⁵ = 19977389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005078 + 10005079.

It is an arithmetic number, because the mean of its divisors is an integer number (10005079).

Almost surely, 2^20010157 is an apocalyptic number.

It is an amenable number.

20010157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010157 is an equidigital number, since it uses as much as digits as its factorization.

20010157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 20010157 is about 4473.2713979816. The cubic root of 20010157 is about 271.4877044492.

Adding to 20010157 its reverse (75101002), we get a palindrome (95111159).

The spelling of 20010157 in words is "twenty million, ten thousand, one hundred fifty-seven".