127342291 has 4 divisors (see below), whose sum is σ = 134833032. Its totient is φ = 119851552.

The previous prime is 127342273. The next prime is 127342309. The reversal of 127342291 is 192243721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192243721 = 1523 ⋅126227.

It is an interprime number because it is at equal distance from previous prime (127342273) and next prime (127342309).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127342291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127342261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3745345 + ... + 3745378.

It is an arithmetic number, because the mean of its divisors is an integer number (33708258).

Almost surely, 2^127342291 is an apocalyptic number.

127342291 is a deficient number, since it is larger than the sum of its proper divisors (7490741).

127342291 is an equidigital number, since it uses as much as digits as its factorization.

127342291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490740.

The product of its digits is 6048, while the sum is 31.

The square root of 127342291 is about 11284.6041578781. The cubic root of 127342291 is about 503.1037482941.

The spelling of 127342291 in words is "one hundred twenty-seven million, three hundred forty-two thousand, two hundred ninety-one".