127643475 has 12 divisors (see below), whose sum is σ = 211037336. Its totient is φ = 68076480.

The previous prime is 127643473. The next prime is 127643489. The reversal of 127643475 is 574346721.

It is not a de Polignac number, because 127643475 - 2¹ = 127643473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127643473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850882 + ... + 851031.

Almost surely, 2^127643475 is an apocalyptic number.

127643475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

127643475 is a deficient number, since it is larger than the sum of its proper divisors (83393861).

127643475 is a wasteful number, since it uses less digits than its factorization.

127643475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701926 (or 1701921 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 127643475 is about 11297.9411841273. The cubic root of 127643475 is about 503.5000751114.

The spelling of 127643475 in words is "one hundred twenty-seven million, six hundred forty-three thousand, four hundred seventy-five".