1613091 has 8 divisors (see below), whose sum is σ = 2170960. Its totient is φ = 1065312.

The previous prime is 1613069. The next prime is 1613093. The reversal of 1613091 is 1903161.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1613091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613093) 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, 2140 + ... + 2793.

It is an arithmetic number, because the mean of its divisors is an integer number (271370).

2^1613091 is an apocalyptic number.

1613091 is a deficient number, since it is larger than the sum of its proper divisors (557869).

1613091 is a wasteful number, since it uses less digits than its factorization.

1613091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1613091 is about 1270.0751946243. The cubic root of 1613091 is about 117.2788294622.

The spelling of 1613091 in words is "one million, six hundred thirteen thousand, ninety-one".