126732269 has 4 divisors (see below), whose sum is σ = 126943740. Its totient is φ = 126520800.

The previous prime is 126732251. The next prime is 126732293. The reversal of 126732269 is 962237621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112572100 + 14160169 = 10610^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 126732269 - 2¹⁶ = 126666733 is a prime.

It is a super-2 number, since 2×126732269² = 32122136011776722, 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 (129732269) 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, 104834 + ... + 106035.

It is an arithmetic number, because the mean of its divisors is an integer number (31735935).

Almost surely, 2^126732269 is an apocalyptic number.

It is an amenable number.

126732269 is a deficient number, since it is larger than the sum of its proper divisors (211471).

126732269 is an equidigital number, since it uses as much as digits as its factorization.

126732269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211470.

The product of its digits is 54432, while the sum is 38.

The square root of 126732269 is about 11257.5427603008. The cubic root of 126732269 is about 502.2991040375.

The spelling of 126732269 in words is "one hundred twenty-six million, seven hundred thirty-two thousand, two hundred sixty-nine".