126921283 has 2 divisors, whose sum is σ = 126921284. Its totient is φ = 126921282.

The previous prime is 126921271. The next prime is 126921287. The reversal of 126921283 is 382129621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126921283 - 2⁹ = 126920771 is a prime.

It is a super-2 number, since 2×126921283² = 32218024156732178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126921287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63460641 + 63460642.

It is an arithmetic number, because the mean of its divisors is an integer number (63460642).

Almost surely, 2^126921283 is an apocalyptic number.

126921283 is a deficient number, since it is larger than the sum of its proper divisors (1).

126921283 is an equidigital number, since it uses as much as digits as its factorization.

126921283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 126921283 is about 11265.9346261196. The cubic root of 126921283 is about 502.5486968805.

The spelling of 126921283 in words is "one hundred twenty-six million, nine hundred twenty-one thousand, two hundred eighty-three".