20152703 has 2 divisors, whose sum is σ = 20152704. Its totient is φ = 20152702.

The previous prime is 20152621. The next prime is 20152739. The reversal of 20152703 is 30725102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20152703 - 2¹⁰ = 20151679 is a prime.

It is a super-2 number, since 2×20152703² = 812262876412418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20152793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076351 + 10076352.

It is an arithmetic number, because the mean of its divisors is an integer number (10076352).

Almost surely, 2^20152703 is an apocalyptic number.

20152703 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152703 is an equidigital number, since it uses as much as digits as its factorization.

20152703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 20152703 is about 4489.1762050514. The cubic root of 20152703 is about 272.1308437310.

Adding to 20152703 its reverse (30725102), we get a palindrome (50877805).

The spelling of 20152703 in words is "twenty million, one hundred fifty-two thousand, seven hundred three".