127213646 has 32 divisors (see below), whose sum is σ = 226670592. Its totient is φ = 52397280.

The previous prime is 127213643. The next prime is 127213649. The reversal of 127213646 is 646312721.

It is an interprime number because it is at equal distance from previous prime (127213643) and next prime (127213649).

It is a super-2 number, since 2×127213646² = 32366623457226632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127213643) 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, 67205 + ... + 69071.

It is an arithmetic number, because the mean of its divisors is an integer number (7083456).

Almost surely, 2^127213646 is an apocalyptic number.

127213646 is a deficient number, since it is larger than the sum of its proper divisors (99456946).

127213646 is a wasteful number, since it uses less digits than its factorization.

127213646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064.

The product of its digits is 12096, while the sum is 32.

The square root of 127213646 is about 11278.9026948547. The cubic root of 127213646 is about 502.9342743824.

The spelling of 127213646 in words is "one hundred twenty-seven million, two hundred thirteen thousand, six hundred forty-six".