126887029 has 2 divisors, whose sum is σ = 126887030. Its totient is φ = 126887028.

The previous prime is 126887003. The next prime is 126887041. The reversal of 126887029 is 920788621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 26286129 = 10030^2 + 5127^2 .

It is a cyclic number.

It is not a de Polignac number, because 126887029 - 2⁹ = 126886517 is a prime.

It is a super-2 number, since 2×126887029² = 32200636256893682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126887129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63443514 + 63443515.

It is an arithmetic number, because the mean of its divisors is an integer number (63443515).

Almost surely, 2^126887029 is an apocalyptic number.

It is an amenable number.

126887029 is a deficient number, since it is larger than the sum of its proper divisors (1).

126887029 is an equidigital number, since it uses as much as digits as its factorization.

126887029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 126887029 is about 11264.4142768277. The cubic root of 126887029 is about 502.5034828929.

The spelling of 126887029 in words is "one hundred twenty-six million, eight hundred eighty-seven thousand, twenty-nine".