619012 has 6 divisors (see below), whose sum is σ = 1083278. Its totient is φ = 309504.

The previous prime is 619009. The next prime is 619019. The reversal of 619012 is 210916.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 4356 = 784^2 + 66^2 .

It is a super-2 number, since 2×619012² = 766351712288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77373 + ... + 77380.

2⁶¹⁹⁰¹² is an apocalyptic number.

It is an amenable number.

619012 is a deficient number, since it is larger than the sum of its proper divisors (464266).

619012 is a wasteful number, since it uses less digits than its factorization.

619012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154757 (or 154755 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 619012 is about 786.7731566341. The cubic root of 619012 is about 85.2248716942.

Adding to 619012 its reverse (210916), we get a palindrome (829928).

The spelling of 619012 in words is "six hundred nineteen thousand, twelve".