1612413745531 has 2 divisors, whose sum is σ = 1612413745532. Its totient is φ = 1612413745530.

The previous prime is 1612413745529. The next prime is 1612413745559. The reversal of 1612413745531 is 1355473142161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1612413745531 - 2¹ = 1612413745529 is a prime.

It is a super-2 number, since 2×1612413745531² (a number of 25 digits) contains 22 as substring.

Together with 1612413745529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1612413745231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806206872765 + 806206872766.

It is an arithmetic number, because the mean of its divisors is an integer number (806206872766).

Almost surely, 2^{1612413745531} is an apocalyptic number.

1612413745531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612413745531 is an equidigital number, since it uses as much as digits as its factorization.

1612413745531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

Adding to 1612413745531 its reverse (1355473142161), we get a palindrome (2967886887692).

The spelling of 1612413745531 in words is "one trillion, six hundred twelve billion, four hundred thirteen million, seven hundred forty-five thousand, five hundred thirty-one".