126896641 has 4 divisors (see below), whose sum is σ = 127675312. Its totient is φ = 126117972.

The previous prime is 126896639. The next prime is 126896647. The reversal of 126896641 is 146698621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146698621 = 199 ⋅737179.

It is a cyclic number.

It is not a de Polignac number, because 126896641 - 2¹ = 126896639 is a prime.

It is a super-2 number, since 2×126896641² = 32205514994165762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126896647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389091 + ... + 389416.

It is an arithmetic number, because the mean of its divisors is an integer number (31918828).

Almost surely, 2^126896641 is an apocalyptic number.

It is an amenable number.

126896641 is a deficient number, since it is larger than the sum of its proper divisors (778671).

126896641 is an equidigital number, since it uses as much as digits as its factorization.

126896641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778670.

The product of its digits is 124416, while the sum is 43.

The square root of 126896641 is about 11264.8409220903. The cubic root of 126896641 is about 502.5161711915.

The spelling of 126896641 in words is "one hundred twenty-six million, eight hundred ninety-six thousand, six hundred forty-one".