127426531 has 4 divisors (see below), whose sum is σ = 127792000. Its totient is φ = 127061064.

The previous prime is 127426517. The next prime is 127426591. The reversal of 127426531 is 135624721.

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

It is a cyclic number.

It is not a de Polignac number, because 127426531 - 2²⁵ = 93872099 is a prime.

It is a super-2 number, since 2×127426531² = 32475041605387922, 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 = 127426493 and 127426502.

It is not an unprimeable number, because it can be changed into a prime (127426591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182211 + ... + 182908.

It is an arithmetic number, because the mean of its divisors is an integer number (31948000).

Almost surely, 2^127426531 is an apocalyptic number.

127426531 is a deficient number, since it is larger than the sum of its proper divisors (365469).

127426531 is an equidigital number, since it uses as much as digits as its factorization.

127426531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365468.

The product of its digits is 10080, while the sum is 31.

The square root of 127426531 is about 11288.3360598451. The cubic root of 127426531 is about 503.2146622657.

The spelling of 127426531 in words is "one hundred twenty-seven million, four hundred twenty-six thousand, five hundred thirty-one".