134211897 has 10 divisors (see below), whose sum is σ = 200489498. Its totient is φ = 89474544.

The previous prime is 134211863. The next prime is 134211907. The reversal of 134211897 is 798112431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 133541136 + 670761 = 11556^2 + 819^2 .

It is not a de Polignac number, because 134211897 - 2⁸ = 134211641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134211827) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 828388 + ... + 828549.

Almost surely, 2^134211897 is an apocalyptic number.

It is an amenable number.

134211897 is a deficient number, since it is larger than the sum of its proper divisors (66277601).

134211897 is an equidigital number, since it uses as much as digits as its factorization.

134211897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656949 (or 1656940 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 134211897 is about 11584.9858437548. The cubic root of 134211897 is about 511.9925853927.

The spelling of 134211897 in words is "one hundred thirty-four million, two hundred eleven thousand, eight hundred ninety-seven".