1613145 has 32 divisors (see below), whose sum is σ = 2749824. Its totient is φ = 806400.

The previous prime is 1613141. The next prime is 1613149. The reversal of 1613145 is 5413161.

It is an interprime number because it is at equal distance from previous prime (1613141) and next prime (1613149).

It is not a de Polignac number, because 1613145 - 2² = 1613141 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1613141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26415 + ... + 26475.

It is an arithmetic number, because the mean of its divisors is an integer number (85932).

2^1613145 is an apocalyptic number.

1613145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1613145 is a deficient number, since it is larger than the sum of its proper divisors (1136679).

1613145 is a wasteful number, since it uses less digits than its factorization.

1613145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153.

The product of its digits is 360, while the sum is 21.

The square root of 1613145 is about 1270.0964530302. The cubic root of 1613145 is about 117.2801381269.

The spelling of 1613145 in words is "one million, six hundred thirteen thousand, one hundred forty-five".