19429031 has 2 divisors, whose sum is σ = 19429032. Its totient is φ = 19429030.

The previous prime is 19429021. The next prime is 19429037. The reversal of 19429031 is 13092491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19429031 is a prime.

It is a super-2 number, since 2×19429031² = 754974491197922, which contains 22 as substring.

It is equal to p_1236629 and since 19429031 and 1236629 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 19428985 and 19429003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19429037) by changing a digit.

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, 9714515 + 9714516.

It is an arithmetic number, because the mean of its divisors is an integer number (9714516).

Almost surely, 2^19429031 is an apocalyptic number.

19429031 is a deficient number, since it is larger than the sum of its proper divisors (1).

19429031 is an equidigital number, since it uses as much as digits as its factorization.

19429031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19429031 is about 4407.8374516309. The cubic root of 19429031 is about 268.8337027183.

The spelling of 19429031 in words is "nineteen million, four hundred twenty-nine thousand, thirty-one".