19450153 has 2 divisors, whose sum is σ = 19450154. Its totient is φ = 19450152.

The previous prime is 19450121. The next prime is 19450181. The reversal of 19450153 is 35105491.

It is an a-pointer prime, because the next prime (19450181) can be obtained adding 19450153 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18766224 + 683929 = 4332^2 + 827^2 .

It is an emirp because it is prime and its reverse (35105491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19450153 - 2⁵ = 19450121 is a prime.

It is not a weakly prime, because it can be changed into another prime (19450183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9725076 + 9725077.

It is an arithmetic number, because the mean of its divisors is an integer number (9725077).

Almost surely, 2^19450153 is an apocalyptic number.

It is an amenable number.

19450153 is a deficient number, since it is larger than the sum of its proper divisors (1).

19450153 is an equidigital number, since it uses as much as digits as its factorization.

19450153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 19450153 is about 4410.2327602974. The cubic root of 19450153 is about 268.9310870399.

The spelling of 19450153 in words is "nineteen million, four hundred fifty thousand, one hundred fifty-three".