900015197 has 2 divisors, whose sum is σ = 900015198. Its totient is φ = 900015196.

The previous prime is 900015059. The next prime is 900015209. The reversal of 900015197 is 791510009.

900015197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458216836 + 441798361 = 21406^2 + 21019^2 .

It is a cyclic number.

It is not a de Polignac number, because 900015197 - 2¹⁸ = 899753053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900015497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450007598 + 450007599.

It is an arithmetic number, because the mean of its divisors is an integer number (450007599).

Almost surely, 2^900015197 is an apocalyptic number.

It is an amenable number.

900015197 is a deficient number, since it is larger than the sum of its proper divisors (1).

900015197 is an equidigital number, since it uses as much as digits as its factorization.

900015197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 900015197 is about 30000.2532822641. The cubic root of 900015197 is about 965.4948188499.

The spelling of 900015197 in words is "nine hundred million, fifteen thousand, one hundred ninety-seven".