134428957 has 4 divisors (see below), whose sum is σ = 144769660. Its totient is φ = 124088256.

The previous prime is 134428919. The next prime is 134428967. The reversal of 134428957 is 759824431.

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 41229241 + 93199716 = 6421^2 + 9654^2 .

It is a cyclic number.

It is not a de Polignac number, because 134428957 - 2¹⁵ = 134396189 is a prime.

It is a super-2 number, since 2×134428957² = 36142288960215698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134428907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170332 + ... + 5170357.

It is an arithmetic number, because the mean of its divisors is an integer number (36192415).

Almost surely, 2^134428957 is an apocalyptic number.

It is an amenable number.

134428957 is a deficient number, since it is larger than the sum of its proper divisors (10340703).

134428957 is a wasteful number, since it uses less digits than its factorization.

134428957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340702.

The product of its digits is 241920, while the sum is 43.

The square root of 134428957 is about 11594.3502189644. The cubic root of 134428957 is about 512.2684507847.

The spelling of 134428957 in words is "one hundred thirty-four million, four hundred twenty-eight thousand, nine hundred fifty-seven".