197914901 has 4 divisors (see below), whose sum is σ = 209556972. Its totient is φ = 186272832.

The previous prime is 197914891. The next prime is 197914903. The reversal of 197914901 is 109419791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54538225 + 143376676 = 7385^2 + 11974^2 .

It is a cyclic number.

It is not a de Polignac number, because 197914901 - 2⁶ = 197914837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197914903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5821010 + ... + 5821043.

It is an arithmetic number, because the mean of its divisors is an integer number (52389243).

Almost surely, 2^197914901 is an apocalyptic number.

It is an amenable number.

197914901 is a deficient number, since it is larger than the sum of its proper divisors (11642071).

197914901 is a wasteful number, since it uses less digits than its factorization.

197914901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642070.

The product of its (nonzero) digits is 20412, while the sum is 41.

The square root of 197914901 is about 14068.2230931984. The cubic root of 197914901 is about 582.7641550906.

The spelling of 197914901 in words is "one hundred ninety-seven million, nine hundred fourteen thousand, nine hundred one".