134240431 has 4 divisors (see below), whose sum is σ = 144566632. Its totient is φ = 123914232.

The previous prime is 134240429. The next prime is 134240441. The reversal of 134240431 is 134042431.

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

It is not a de Polignac number, because 134240431 - 2¹ = 134240429 is a prime.

It is a super-2 number, since 2×134240431² = 36040986630131522, 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 (134240401) 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, 5163081 + ... + 5163106.

It is an arithmetic number, because the mean of its divisors is an integer number (36141658).

Almost surely, 2^134240431 is an apocalyptic number.

134240431 is a deficient number, since it is larger than the sum of its proper divisors (10326201).

134240431 is a wasteful number, since it uses less digits than its factorization.

134240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326200.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 134240431 is about 11586.2172860688. The cubic root of 134240431 is about 512.0288667298.

Adding to 134240431 its reverse (134042431), we get a palindrome (268282862).

The spelling of 134240431 in words is "one hundred thirty-four million, two hundred forty thousand, four hundred thirty-one".