127030730 has 32 divisors (see below), whose sum is σ = 238937040. Its totient is φ = 48563200.

The previous prime is 127030723. The next prime is 127030733. The reversal of 127030730 is 37030721.

It can be written as a sum of positive squares in 8 ways, for example, as 50310649 + 76720081 = 7093^2 + 8759^2 .

It is a super-2 number, since 2×127030730² = 32273612728665800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127030696 and 127030705.

It is not an unprimeable number, because it can be changed into a prime (127030733) 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, 27122 + ... + 31458.

Almost surely, 2^127030730 is an apocalyptic number.

127030730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127030730 is a deficient number, since it is larger than the sum of its proper divisors (111906310).

127030730 is a wasteful number, since it uses less digits than its factorization.

127030730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 127030730 is about 11270.7910103950. The cubic root of 127030730 is about 502.6931082919.

Subtracting from 127030730 its reverse (37030721), we obtain a palindrome (90000009).

The spelling of 127030730 in words is "one hundred twenty-seven million, thirty thousand, seven hundred thirty".