1616249 has 4 divisors (see below), whose sum is σ = 1619280. Its totient is φ = 1613220.

The previous prime is 1616231. The next prime is 1616269. The reversal of 1616249 is 9426161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1616249 - 2²⁰ = 567673 is a prime.

It is a super-2 number, since 2×1616249² = 5224521660002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616269) 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 3 ways as a sum of consecutive naturals, for example, 479 + ... + 1860.

It is an arithmetic number, because the mean of its divisors is an integer number (404820).

2^1616249 is an apocalyptic number.

It is an amenable number.

1616249 is a deficient number, since it is larger than the sum of its proper divisors (3031).

1616249 is an equidigital number, since it uses as much as digits as its factorization.

1616249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its digits is 2592, while the sum is 29.

The square root of 1616249 is about 1271.3178202165. The cubic root of 1616249 is about 117.3553130813.

The spelling of 1616249 in words is "one million, six hundred sixteen thousand, two hundred forty-nine".