134121641 has 4 divisors (see below), whose sum is σ = 136652292. Its totient is φ = 131590992.

The previous prime is 134121577. The next prime is 134121643. The reversal of 134121641 is 146121431.

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 94381225 + 39740416 = 9715^2 + 6304^2 .

It is a cyclic number.

It is not a de Polignac number, because 134121641 - 2⁶ = 134121577 is a prime.

It is a super-2 number, since 2×134121641² = 35977229169065762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134121643) 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, 1265246 + ... + 1265351.

It is an arithmetic number, because the mean of its divisors is an integer number (34163073).

Almost surely, 2^134121641 is an apocalyptic number.

It is an amenable number.

134121641 is a deficient number, since it is larger than the sum of its proper divisors (2530651).

134121641 is an equidigital number, since it uses as much as digits as its factorization.

134121641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530650.

The product of its digits is 576, while the sum is 23.

The square root of 134121641 is about 11581.0898019142. The cubic root of 134121641 is about 511.8777898931.

The spelling of 134121641 in words is "one hundred thirty-four million, one hundred twenty-one thousand, six hundred forty-one".