134121431 has 4 divisors (see below), whose sum is σ = 134160552. Its totient is φ = 134082312.

The previous prime is 134121389. The next prime is 134121451.

134121431 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134121431 - 2¹⁰ = 134120407 is a prime.

It is a super-2 number, since 2×134121431² = 35977116506975522, 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 (134121451) 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, 13865 + ... + 21458.

It is an arithmetic number, because the mean of its divisors is an integer number (33540138).

Almost surely, 2^134121431 is an apocalyptic number.

134121431 is a deficient number, since it is larger than the sum of its proper divisors (39121).

134121431 is an equidigital number, since it uses as much as digits as its factorization.

134121431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39120.

The product of its digits is 288, while the sum is 20.

The square root of 134121431 is about 11581.0807354063. The cubic root of 134121431 is about 511.8775227366.

The spelling of 134121431 in words is "one hundred thirty-four million, one hundred twenty-one thousand, four hundred thirty-one".