134145431 has 8 divisors (see below), whose sum is σ = 153386784. Its totient is φ = 114923520.

The previous prime is 134145373. The next prime is 134145433. The reversal of 134145431 is 134541431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134145431 - 2¹⁰ = 134144407 is a prime.

It is a super-2 number, since 2×134145431² = 35989993316351522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134145431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134145433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15791 + ... + 22751.

It is an arithmetic number, because the mean of its divisors is an integer number (19173348).

Almost surely, 2^134145431 is an apocalyptic number.

134145431 is a deficient number, since it is larger than the sum of its proper divisors (19241353).

134145431 is an equidigital number, since it uses as much as digits as its factorization.

134145431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9721.

The product of its digits is 2880, while the sum is 26.

The square root of 134145431 is about 11582.1168617831. The cubic root of 134145431 is about 511.9080530994.

Adding to 134145431 its reverse (134541431), we get a palindrome (268686862).

The spelling of 134145431 in words is "one hundred thirty-four million, one hundred forty-five thousand, four hundred thirty-one".