126963649 has 8 divisors (see below), whose sum is σ = 130134752. Its totient is φ = 123802560.

The previous prime is 126963637. The next prime is 126963677. The reversal of 126963649 is 946369621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126963649 - 2¹⁷ = 126832577 is a prime.

It is a super-2 number, since 2×126963649² = 32239536334790402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126963599 and 126963608.

It is not an unprimeable number, because it can be changed into a prime (126963449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27577 + ... + 31849.

It is an arithmetic number, because the mean of its divisors is an integer number (16266844).

Almost surely, 2^126963649 is an apocalyptic number.

It is an amenable number.

126963649 is a deficient number, since it is larger than the sum of its proper divisors (3171103).

126963649 is an equidigital number, since it uses as much as digits as its factorization.

126963649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007.

The product of its digits is 419904, while the sum is 46.

The square root of 126963649 is about 11267.8147393361. The cubic root of 126963649 is about 502.6046071504.

The spelling of 126963649 in words is "one hundred twenty-six million, nine hundred sixty-three thousand, six hundred forty-nine".