1375427 has 4 divisors (see below), whose sum is σ = 1409016. Its totient is φ = 1341840.

The previous prime is 1375421. The next prime is 1375433. The reversal of 1375427 is 7245731.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1375421) and next prime (1375433).

It is a cyclic number.

It is not a de Polignac number, because 1375427 - 2⁴ = 1375411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375427.

It is not an unprimeable number, because it can be changed into a prime (1375421) 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, 16733 + ... + 16814.

It is an arithmetic number, because the mean of its divisors is an integer number (352254).

2^1375427 is an apocalyptic number.

1375427 is a deficient number, since it is larger than the sum of its proper divisors (33589).

1375427 is an equidigital number, since it uses as much as digits as its factorization.

1375427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33588.

The product of its digits is 5880, while the sum is 29.

The square root of 1375427 is about 1172.7859992343. The cubic root of 1375427 is about 111.2105141189.

The spelling of 1375427 in words is "one million, three hundred seventy-five thousand, four hundred twenty-seven".