153690197 has 2 divisors, whose sum is σ = 153690198. Its totient is φ = 153690196.

The previous prime is 153690151. The next prime is 153690203. The reversal of 153690197 is 791096351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153611236 + 78961 = 12394^2 + 281^2 .

It is an emirp because it is prime and its reverse (791096351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153690197 - 2⁶ = 153690133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153690497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76845098 + 76845099.

It is an arithmetic number, because the mean of its divisors is an integer number (76845099).

Almost surely, 2^153690197 is an apocalyptic number.

It is an amenable number.

153690197 is a deficient number, since it is larger than the sum of its proper divisors (1).

153690197 is an equidigital number, since it uses as much as digits as its factorization.

153690197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 153690197 is about 12397.1850433879. The cubic root of 153690197 is about 535.6511674072.

The spelling of 153690197 in words is "one hundred fifty-three million, six hundred ninety thousand, one hundred ninety-seven".