134131531 has 2 divisors, whose sum is σ = 134131532. Its totient is φ = 134131530.

The previous prime is 134131477. The next prime is 134131553. The reversal of 134131531 is 135131431.

It is an a-pointer prime, because the next prime (134131553) can be obtained adding 134131531 to its sum of digits (22).

It is a strong prime.

It is an emirp because it is prime and its reverse (135131431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134131531 - 2¹⁷ = 134000459 is a prime.

It is a super-2 number, since 2×134131531² = 35982535216807922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134135531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67065765 + 67065766.

It is an arithmetic number, because the mean of its divisors is an integer number (67065766).

Almost surely, 2^134131531 is an apocalyptic number.

134131531 is a deficient number, since it is larger than the sum of its proper divisors (1).

134131531 is an equidigital number, since it uses as much as digits as its factorization.

134131531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 134131531 is about 11581.5167832197. The cubic root of 134131531 is about 511.8903713748.

Adding to 134131531 its reverse (135131431), we get a palindrome (269262962).

The spelling of 134131531 in words is "one hundred thirty-four million, one hundred thirty-one thousand, five hundred thirty-one".