126031481 has 2 divisors, whose sum is σ = 126031482. Its totient is φ = 126031480.

The previous prime is 126031469. The next prime is 126031483. The reversal of 126031481 is 184130621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72522256 + 53509225 = 8516^2 + 7315^2 .

It is a cyclic number.

It is not a de Polignac number, because 126031481 - 2¹⁸ = 125769337 is a prime.

It is a super-2 number, since 2×126031481² = 31767868406106722, which contains 22 as substring.

Together with 126031483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126031481.

It is not a weakly prime, because it can be changed into another prime (126031483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63015740 + 63015741.

It is an arithmetic number, because the mean of its divisors is an integer number (63015741).

Almost surely, 2^126031481 is an apocalyptic number.

It is an amenable number.

126031481 is a deficient number, since it is larger than the sum of its proper divisors (1).

126031481 is an equidigital number, since it uses as much as digits as its factorization.

126031481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 126031481 is about 11226.3743479362. The cubic root of 126031481 is about 501.3715423034.

The spelling of 126031481 in words is "one hundred twenty-six million, thirty-one thousand, four hundred eighty-one".