1353391 has 4 divisors (see below), whose sum is σ = 1457512. Its totient is φ = 1249272.

The previous prime is 1353383. The next prime is 1353397. The reversal of 1353391 is 1933531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1933531 = 523 ⋅3697.

It is a cyclic number.

It is not a de Polignac number, because 1353391 - 2³ = 1353383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353397) 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, 52041 + ... + 52066.

It is an arithmetic number, because the mean of its divisors is an integer number (364378).

2^1353391 is an apocalyptic number.

1353391 is a deficient number, since it is larger than the sum of its proper divisors (104121).

1353391 is a wasteful number, since it uses less digits than its factorization.

1353391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104120.

The product of its digits is 1215, while the sum is 25.

The square root of 1353391 is about 1163.3533427124. The cubic root of 1353391 is about 110.6134050005.

The spelling of 1353391 in words is "one million, three hundred fifty-three thousand, three hundred ninety-one".