190525897 has 2 divisors, whose sum is σ = 190525898. Its totient is φ = 190525896.

The previous prime is 190525891. The next prime is 190525931. The reversal of 190525897 is 798525091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190136521 + 389376 = 13789^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 190525897 - 2¹⁵ = 190493129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190525891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95262948 + 95262949.

It is an arithmetic number, because the mean of its divisors is an integer number (95262949).

Almost surely, 2^190525897 is an apocalyptic number.

It is an amenable number.

190525897 is a deficient number, since it is larger than the sum of its proper divisors (1).

190525897 is an equidigital number, since it uses as much as digits as its factorization.

190525897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 190525897 is about 13803.1118592874. Note that the first 3 decimals coincide. The cubic root of 190525897 is about 575.4196276501.

The spelling of 190525897 in words is "one hundred ninety million, five hundred twenty-five thousand, eight hundred ninety-seven".