1012179919 has 2 divisors, whose sum is σ = 1012179920. Its totient is φ = 1012179918.

The previous prime is 1012179907. The next prime is 1012179943. The reversal of 1012179919 is 9199712101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012179919 - 2⁹ = 1012179407 is a prime.

It is a super-2 number, since 2×1012179919² = 2049016376853693122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012170919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506089959 + 506089960.

It is an arithmetic number, because the mean of its divisors is an integer number (506089960).

Almost surely, 2^1012179919 is an apocalyptic number.

1012179919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012179919 is an equidigital number, since it uses as much as digits as its factorization.

1012179919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 40.

The square root of 1012179919 is about 31814.7751681510. The cubic root of 1012179919 is about 1004.0436002584.

The spelling of 1012179919 in words is "one billion, twelve million, one hundred seventy-nine thousand, nine hundred nineteen".