134258257 has 4 divisors (see below), whose sum is σ = 153438016. Its totient is φ = 115078500.

The previous prime is 134258251. The next prime is 134258261. The reversal of 134258257 is 752852431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134258257 - 2³ = 134258249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134258251) 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, 9589869 + ... + 9589882.

It is an arithmetic number, because the mean of its divisors is an integer number (38359504).

Almost surely, 2^134258257 is an apocalyptic number.

It is an amenable number.

134258257 is a deficient number, since it is larger than the sum of its proper divisors (19179759).

134258257 is an equidigital number, since it uses as much as digits as its factorization.

134258257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19179758.

The product of its digits is 67200, while the sum is 37.

The square root of 134258257 is about 11586.9865366281. The cubic root of 134258257 is about 512.0515301021.

The spelling of 134258257 in words is "one hundred thirty-four million, two hundred fifty-eight thousand, two hundred fifty-seven".