20070229 has 2 divisors, whose sum is σ = 20070230. Its totient is φ = 20070228.

The previous prime is 20070179. The next prime is 20070257. The reversal of 20070229 is 92207002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 62500 = 4473^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 20070229 - 2⁷ = 20070101 is a prime.

It is a super-2 number, since 2×20070229² = 805628184224882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20070529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10035114 + 10035115.

It is an arithmetic number, because the mean of its divisors is an integer number (10035115).

Almost surely, 2^20070229 is an apocalyptic number.

It is an amenable number.

20070229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20070229 is an equidigital number, since it uses as much as digits as its factorization.

20070229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20070229 is about 4479.9809151379. The cubic root of 20070229 is about 271.7591085576.

The spelling of 20070229 in words is "twenty million, seventy thousand, two hundred twenty-nine".