127225640 has 16 divisors (see below), whose sum is σ = 286257780. Its totient is φ = 50890240.

The previous prime is 127225619. The next prime is 127225661. The reversal of 127225640 is 46522721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (127225619) and next prime (127225661).

It can be written as a sum of positive squares in 2 ways, for example, as 114019684 + 13205956 = 10678^2 + 3634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590281 + ... + 1590360.

Almost surely, 2^127225640 is an apocalyptic number.

127225640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127225640 is an abundant number, since it is smaller than the sum of its proper divisors (159032140).

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

127225640 is a wasteful number, since it uses less digits than its factorization.

127225640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180652 (or 3180648 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 127225640 is about 11279.4343829822. The cubic root of 127225640 is about 502.9500798254.

The spelling of 127225640 in words is "one hundred twenty-seven million, two hundred twenty-five thousand, six hundred forty".