134247657 has 32 divisors (see below), whose sum is σ = 194493312. Its totient is φ = 82059264.

The previous prime is 134247637. The next prime is 134247703. The reversal of 134247657 is 756742431.

It is not a de Polignac number, because 134247657 - 2¹⁵ = 134214889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134247637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398193 + ... + 398529.

It is an arithmetic number, because the mean of its divisors is an integer number (6077916).

Almost surely, 2^134247657 is an apocalyptic number.

134247657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

134247657 is a deficient number, since it is larger than the sum of its proper divisors (60245655).

134247657 is a wasteful number, since it uses less digits than its factorization.

134247657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 141120, while the sum is 39.

The square root of 134247657 is about 11586.5291179024. The cubic root of 134247657 is about 512.0380538631.

The spelling of 134247657 in words is "one hundred thirty-four million, two hundred forty-seven thousand, six hundred fifty-seven".