127264531 has 4 divisors (see below), whose sum is σ = 127291392. Its totient is φ = 127237672.

The previous prime is 127264519. The next prime is 127264537. The reversal of 127264531 is 135462721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135462721 = 11579 ⋅11699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127264531 is a prime.

It is a super-3 number, since 3×127264531³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127264493 and 127264502.

It is not an unprimeable number, because it can be changed into a prime (127264537) 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, 4216 + ... + 16501.

It is an arithmetic number, because the mean of its divisors is an integer number (31822848).

Almost surely, 2^127264531 is an apocalyptic number.

127264531 is a deficient number, since it is larger than the sum of its proper divisors (26861).

127264531 is an equidigital number, since it uses as much as digits as its factorization.

127264531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26860.

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

The square root of 127264531 is about 11281.1582295436. The cubic root of 127264531 is about 503.0013227426.

The spelling of 127264531 in words is "one hundred twenty-seven million, two hundred sixty-four thousand, five hundred thirty-one".