1613445 has 8 divisors (see below), whose sum is σ = 2581536. Its totient is φ = 860496.

The previous prime is 1613441. The next prime is 1613471. The reversal of 1613445 is 5443161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1613445 - 2² = 1613441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53767 + ... + 53796.

It is an arithmetic number, because the mean of its divisors is an integer number (322692).

2^1613445 is an apocalyptic number.

1613445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1613445 is a deficient number, since it is larger than the sum of its proper divisors (968091).

1613445 is a wasteful number, since it uses less digits than its factorization.

1613445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107571.

The product of its digits is 1440, while the sum is 24.

The square root of 1613445 is about 1270.2145488066. The cubic root of 1613445 is about 117.2874079550.

The spelling of 1613445 in words is "one million, six hundred thirteen thousand, four hundred forty-five".