134028431 has 2 divisors, whose sum is σ = 134028432. Its totient is φ = 134028430.

The previous prime is 134028379. The next prime is 134028437. The reversal of 134028431 is 134820431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134028431 - 2¹⁸ = 133766287 is a prime.

It is a super-2 number, since 2×134028431² = 35927240632643522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134028431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134028437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67014215 + 67014216.

It is an arithmetic number, because the mean of its divisors is an integer number (67014216).

Almost surely, 2^134028431 is an apocalyptic number.

134028431 is a deficient number, since it is larger than the sum of its proper divisors (1).

134028431 is an equidigital number, since it uses as much as digits as its factorization.

134028431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 134028431 is about 11577.0648698191. The cubic root of 134028431 is about 511.7591831679.

Adding to 134028431 its reverse (134820431), we get a palindrome (268848862).

The spelling of 134028431 in words is "one hundred thirty-four million, twenty-eight thousand, four hundred thirty-one".