2134021531 has 2 divisors, whose sum is σ = 2134021532. Its totient is φ = 2134021530.

The previous prime is 2134021471. The next prime is 2134021541. The reversal of 2134021531 is 1351204312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2134021531 - 2¹³ = 2134013339 is a prime.

It is a super-2 number, since 2×2134021531² = 9108095789543167922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2134021541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067010765 + 1067010766.

It is an arithmetic number, because the mean of its divisors is an integer number (1067010766).

Almost surely, 2^2134021531 is an apocalyptic number.

2134021531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134021531 is an equidigital number, since it uses as much as digits as its factorization.

2134021531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2134021531 is about 46195.4708927185. The cubic root of 2134021531 is about 1287.4575911629.

Adding to 2134021531 its reverse (1351204312), we get a palindrome (3485225843).

The spelling of 2134021531 in words is "two billion, one hundred thirty-four million, twenty-one thousand, five hundred thirty-one".