127700145 has 48 divisors (see below), whose sum is σ = 233443392. Its totient is φ = 66951360.

The previous prime is 127700143. The next prime is 127700179. The reversal of 127700145 is 541007721.

It is not a de Polignac number, because 127700145 - 2¹ = 127700143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127700143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73254 + ... + 74976.

It is an arithmetic number, because the mean of its divisors is an integer number (4863404).

Almost surely, 2^127700145 is an apocalyptic number.

127700145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127700145 is a deficient number, since it is larger than the sum of its proper divisors (105743247).

127700145 is an equidigital number, since it uses as much as digits as its factorization.

127700145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 127700145 is about 11300.4488848895. The cubic root of 127700145 is about 503.5745772292.

Adding to 127700145 its reverse (541007721), we get a palindrome (668707866).

The spelling of 127700145 in words is "one hundred twenty-seven million, seven hundred thousand, one hundred forty-five".