127243396 has 30 divisors (see below), whose sum is σ = 259792750. Its totient is φ = 54528768.

The previous prime is 127243381. The next prime is 127243411. The reversal of 127243396 is 693342721.

It is an interprime number because it is at equal distance from previous prime (127243381) and next prime (127243411).

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 31203396 = 9800^2 + 5586^2 .

It is a super-2 number, since 2×127243396² = 32381763651225632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2980 + ... + 16228.

Almost surely, 2^127243396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127243396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129896375).

127243396 is an abundant number, since it is smaller than the sum of its proper divisors (132549354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127243396 is an equidigital number, since it uses as much as digits as its factorization.

127243396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13281 (or 13258 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 127243396 is about 11280.2214517269. The cubic root of 127243396 is about 502.9734764882.

The spelling of 127243396 in words is "one hundred twenty-seven million, two hundred forty-three thousand, three hundred ninety-six".