1616919254 has 4 divisors (see below), whose sum is σ = 2425378884. Its totient is φ = 808459626.

The previous prime is 1616919233. The next prime is 1616919289. The reversal of 1616919254 is 4529196161.

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

It is a super-2 number, since 2×1616919254² = 5228855747911833032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404229812 + ... + 404229815.

It is an arithmetic number, because the mean of its divisors is an integer number (606344721).

Almost surely, 2^1616919254 is an apocalyptic number.

1616919254 is a deficient number, since it is larger than the sum of its proper divisors (808459630).

1616919254 is an equidigital number, since it uses as much as digits as its factorization.

1616919254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808459629.

The product of its digits is 116640, while the sum is 44.

The square root of 1616919254 is about 40210.9345079171. The cubic root of 1616919254 is about 1173.7153314754.

The spelling of 1616919254 in words is "one billion, six hundred sixteen million, nine hundred nineteen thousand, two hundred fifty-four".