1371355 has 4 divisors (see below), whose sum is σ = 1645632. Its totient is φ = 1097080.

The previous prime is 1371353. The next prime is 1371389. The reversal of 1371355 is 5531731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5531731 = 163 ⋅33937.

It is not a de Polignac number, because 1371355 - 2¹ = 1371353 is a prime.

It is a super-2 number, since 2×1371355² = 3761229072050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1371353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137131 + ... + 137140.

It is an arithmetic number, because the mean of its divisors is an integer number (411408).

2^1371355 is an apocalyptic number.

1371355 is a deficient number, since it is larger than the sum of its proper divisors (274277).

1371355 is an equidigital number, since it uses as much as digits as its factorization.

1371355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274276.

The product of its digits is 1575, while the sum is 25.

The square root of 1371355 is about 1171.0486753334. The cubic root of 1371355 is about 111.1006580907.

The spelling of 1371355 in words is "one million, three hundred seventy-one thousand, three hundred fifty-five".