1355407 has 4 divisors (see below), whose sum is σ = 1378440. Its totient is φ = 1332376.

The previous prime is 1355401. The next prime is 1355423. The reversal of 1355407 is 7045531.

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

It is a cyclic number.

It is not a de Polignac number, because 1355407 - 2³ = 1355399 is a prime.

It is a Duffinian number.

1355407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355401) 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, 11428 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (344610).

2^1355407 is an apocalyptic number.

1355407 is a deficient number, since it is larger than the sum of its proper divisors (23033).

1355407 is an equidigital number, since it uses as much as digits as its factorization.

1355407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23032.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1355407 is about 1164.2194810258. The cubic root of 1355407 is about 110.6683006888.

The spelling of 1355407 in words is "one million, three hundred fifty-five thousand, four hundred seven".