126989741 has 4 divisors (see below), whose sum is σ = 127438752. Its totient is φ = 126540732.

The previous prime is 126989729. The next prime is 126989743. The reversal of 126989741 is 147989621.

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.

It is a cyclic number.

It is not a de Polignac number, because 126989741 - 2¹⁰ = 126988717 is a prime.

It is a super-2 number, since 2×126989741² = 32252788638494162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126989743) 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, 224081 + ... + 224646.

It is an arithmetic number, because the mean of its divisors is an integer number (31859688).

Almost surely, 2^126989741 is an apocalyptic number.

It is an amenable number.

126989741 is a deficient number, since it is larger than the sum of its proper divisors (449011).

126989741 is an equidigital number, since it uses as much as digits as its factorization.

126989741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449010.

The product of its digits is 217728, while the sum is 47.

The square root of 126989741 is about 11268.9724908707. The cubic root of 126989741 is about 502.6390344879.

The spelling of 126989741 in words is "one hundred twenty-six million, nine hundred eighty-nine thousand, seven hundred forty-one".