134238437 has 4 divisors (see below), whose sum is σ = 134285676. Its totient is φ = 134191200.

The previous prime is 134238431. The next prime is 134238449. The reversal of 134238437 is 734832431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734832431 = 4759 ⋅154409.

It can be written as a sum of positive squares in 2 ways, for example, as 67881121 + 66357316 = 8239^2 + 8146^2 .

It is a cyclic number.

It is not a de Polignac number, because 134238437 - 2¹² = 134234341 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 134238397 and 134238406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134238431) 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, 19064 + ... + 25137.

It is an arithmetic number, because the mean of its divisors is an integer number (33571419).

Almost surely, 2^134238437 is an apocalyptic number.

It is an amenable number.

134238437 is a deficient number, since it is larger than the sum of its proper divisors (47239).

134238437 is an equidigital number, since it uses as much as digits as its factorization.

134238437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47238.

The product of its digits is 48384, while the sum is 35.

The square root of 134238437 is about 11586.1312352312. The cubic root of 134238437 is about 512.0263315010.

The spelling of 134238437 in words is "one hundred thirty-four million, two hundred thirty-eight thousand, four hundred thirty-seven".