354513123423149 has 2 divisors, whose sum is σ = 354513123423150. Its totient is φ = 354513123423148.

The previous prime is 354513123423139. The next prime is 354513123423167. The reversal of 354513123423149 is 941324321315453.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242359728360649 + 112153395062500 = 15567907^2 + 10590250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354513123423149 is a prime.

It is a super-2 number, since 2×354513123423149² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354513123423097 and 354513123423106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354513123423139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177256561711574 + 177256561711575.

It is an arithmetic number, because the mean of its divisors is an integer number (177256561711575).

Almost surely, 2^{354513123423149} is an apocalyptic number.

It is an amenable number.

354513123423149 is a deficient number, since it is larger than the sum of its proper divisors (1).

354513123423149 is an equidigital number, since it uses as much as digits as its factorization.

354513123423149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 50.

The spelling of 354513123423149 in words is "three hundred fifty-four trillion, five hundred thirteen billion, one hundred twenty-three million, four hundred twenty-three thousand, one hundred forty-nine".