1375951 has 2 divisors, whose sum is σ = 1375952. Its totient is φ = 1375950.

The previous prime is 1375949. The next prime is 1375981. The reversal of 1375951 is 1595731.

It is a weak prime.

It is an emirp because it is prime and its reverse (1595731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375951 - 2¹ = 1375949 is a prime.

Together with 1375949, it forms a pair of twin primes.

It is a Chen prime.

1375951 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687975 + 687976.

It is an arithmetic number, because the mean of its divisors is an integer number (687976).

2^1375951 is an apocalyptic number.

1375951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375951 is an equidigital number, since it uses as much as digits as its factorization.

1375951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 31.

The square root of 1375951 is about 1173.0093776266. The cubic root of 1375951 is about 111.2246350454.

The spelling of 1375951 in words is "one million, three hundred seventy-five thousand, nine hundred fifty-one".