127849545 has 36 divisors (see below), whose sum is σ = 229982220. Its totient is φ = 65624832.

The previous prime is 127849529. The next prime is 127849567. The reversal of 127849545 is 545948721.

127849545 is a `hidden beast` number, since 1 + 27 + 84 + 9 + 545 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 61214976 + 66634569 = 7824^2 + 8163^2 .

It is not a de Polignac number, because 127849545 - 2⁴ = 127849529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (403200) is a multiple of the sum of its prime divisors (350).

It is a self number, because there is not a number n which added to its sum of digits gives 127849545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 408309 + ... + 408621.

It is an arithmetic number, because the mean of its divisors is an integer number (6388395).

Almost surely, 2^127849545 is an apocalyptic number.

127849545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127849545 is a deficient number, since it is larger than the sum of its proper divisors (102132675).

127849545 is an equidigital number, since it uses as much as digits as its factorization.

127849545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 350 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 127849545 is about 11307.0573094860. The cubic root of 127849545 is about 503.7708827266.

The spelling of 127849545 in words is "one hundred twenty-seven million, eight hundred forty-nine thousand, five hundred forty-five".