126947533 has 2 divisors, whose sum is σ = 126947534. Its totient is φ = 126947532.

The previous prime is 126947507. The next prime is 126947539. The reversal of 126947533 is 335749621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 48483369 = 8858^2 + 6963^2 .

It is an emirp because it is prime and its reverse (335749621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126947533 - 2²¹ = 124850381 is a prime.

It is a super-2 number, since 2×126947533² = 32231352269572178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126947539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63473766 + 63473767.

It is an arithmetic number, because the mean of its divisors is an integer number (63473767).

Almost surely, 2^126947533 is an apocalyptic number.

It is an amenable number.

126947533 is a deficient number, since it is larger than the sum of its proper divisors (1).

126947533 is an equidigital number, since it uses as much as digits as its factorization.

126947533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 126947533 is about 11267.0995824125. The cubic root of 126947533 is about 502.5833403845.

The spelling of 126947533 in words is "one hundred twenty-six million, nine hundred forty-seven thousand, five hundred thirty-three".