19498051 has 2 divisors, whose sum is σ = 19498052. Its totient is φ = 19498050.

The previous prime is 19498021. The next prime is 19498057. The reversal of 19498051 is 15089491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19498051 - 2⁹ = 19497539 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19498051.

It is not a weakly prime, because it can be changed into another prime (19498057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9749025 + 9749026.

It is an arithmetic number, because the mean of its divisors is an integer number (9749026).

Almost surely, 2^19498051 is an apocalyptic number.

19498051 is a deficient number, since it is larger than the sum of its proper divisors (1).

19498051 is an equidigital number, since it uses as much as digits as its factorization.

19498051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 19498051 is about 4415.6597468555. The cubic root of 19498051 is about 269.1516628856.

It can be divided in two parts, 1949 and 8051, that added together give a 4-th power (10000 = 10⁴).

The spelling of 19498051 in words is "nineteen million, four hundred ninety-eight thousand, fifty-one".