126973579 has 2 divisors, whose sum is σ = 126973580. Its totient is φ = 126973578.

The previous prime is 126973549. The next prime is 126973589. The reversal of 126973579 is 975379621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126973579 - 2¹³ = 126965387 is a prime.

It is a super-2 number, since 2×126973579² = 32244579528138482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126973519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63486789 + 63486790.

It is an arithmetic number, because the mean of its divisors is an integer number (63486790).

Almost surely, 2^126973579 is an apocalyptic number.

126973579 is a deficient number, since it is larger than the sum of its proper divisors (1).

126973579 is an equidigital number, since it uses as much as digits as its factorization.

126973579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 49.

The square root of 126973579 is about 11268.2553662934. The cubic root of 126973579 is about 502.6177099392.

The spelling of 126973579 in words is "one hundred twenty-six million, nine hundred seventy-three thousand, five hundred seventy-nine".