154996817429 has 2 divisors, whose sum is σ = 154996817430. Its totient is φ = 154996817428.

The previous prime is 154996817411. The next prime is 154996817483. The reversal of 154996817429 is 924718699451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138912744100 + 16084073329 = 372710^2 + 126823^2 .

It is an emirp because it is prime and its reverse (924718699451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154996817429 - 2³² = 150701850133 is a prime.

It is a super-3 number, since 3×154996817429³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154996817929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77498408714 + 77498408715.

It is an arithmetic number, because the mean of its divisors is an integer number (77498408715).

Almost surely, 2^154996817429 is an apocalyptic number.

It is an amenable number.

154996817429 is a deficient number, since it is larger than the sum of its proper divisors (1).

154996817429 is an equidigital number, since it uses as much as digits as its factorization.

154996817429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 65.

The spelling of 154996817429 in words is "one hundred fifty-four billion, nine hundred ninety-six million, eight hundred seventeen thousand, four hundred twenty-nine".