190998953 has 2 divisors, whose sum is σ = 190998954. Its totient is φ = 190998952.

The previous prime is 190998947. The next prime is 190998971. The reversal of 190998953 is 359899091.

190998953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190219264 + 779689 = 13792^2 + 883^2 .

It is an emirp because it is prime and its reverse (359899091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190998953 - 2²⁴ = 174221737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190998895 and 190998904.

It is not a weakly prime, because it can be changed into another prime (190998053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95499476 + 95499477.

It is an arithmetic number, because the mean of its divisors is an integer number (95499477).

Almost surely, 2^190998953 is an apocalyptic number.

It is an amenable number.

190998953 is a deficient number, since it is larger than the sum of its proper divisors (1).

190998953 is an equidigital number, since it uses as much as digits as its factorization.

190998953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 53.

The square root of 190998953 is about 13820.2370819028. The cubic root of 190998953 is about 575.8954697547.

The spelling of 190998953 in words is "one hundred ninety million, nine hundred ninety-eight thousand, nine hundred fifty-three".