127323561 has 16 divisors (see below), whose sum is σ = 177408000. Its totient is φ = 81071760.

The previous prime is 127323551. The next prime is 127323563. The reversal of 127323561 is 165323721.

It is not a de Polignac number, because 127323561 - 2¹³ = 127315369 is a prime.

It is a super-2 number, since 2×127323561² = 32422578371441442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127323563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84190 + ... + 85688.

It is an arithmetic number, because the mean of its divisors is an integer number (11088000).

Almost surely, 2^127323561 is an apocalyptic number.

It is an amenable number.

127323561 is a deficient number, since it is larger than the sum of its proper divisors (50084439).

127323561 is a wasteful number, since it uses less digits than its factorization.

127323561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756.

The product of its digits is 7560, while the sum is 30.

The square root of 127323561 is about 11283.7742356004. The cubic root of 127323561 is about 503.0790809319.

The spelling of 127323561 in words is "one hundred twenty-seven million, three hundred twenty-three thousand, five hundred sixty-one".