126062621 has 2 divisors, whose sum is σ = 126062622. Its totient is φ = 126062620.

The previous prime is 126062617. The next prime is 126062653. The reversal of 126062621 is 126260621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119661721 + 6400900 = 10939^2 + 2530^2 .

It is an emirp because it is prime and its reverse (126260621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126062621 - 2² = 126062617 is a prime.

It is a super-4 number, since 4×126062621⁴ (a number of 34 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126062221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63031310 + 63031311.

It is an arithmetic number, because the mean of its divisors is an integer number (63031311).

Almost surely, 2^126062621 is an apocalyptic number.

It is an amenable number.

126062621 is a deficient number, since it is larger than the sum of its proper divisors (1).

126062621 is an equidigital number, since it uses as much as digits as its factorization.

126062621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 126062621 is about 11227.7611748736. The cubic root of 126062621 is about 501.4128320510.

The spelling of 126062621 in words is "one hundred twenty-six million, sixty-two thousand, six hundred twenty-one".