154435340892397 has 2 divisors, whose sum is σ = 154435340892398. Its totient is φ = 154435340892396.

The previous prime is 154435340892323. The next prime is 154435340892401. The reversal of 154435340892397 is 793298043534451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103964248193796 + 50471092698601 = 10196286^2 + 7104301^2 .

It is a cyclic number.

It is not a de Polignac number, because 154435340892397 - 2¹¹ = 154435340890349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154435340892997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77217670446198 + 77217670446199.

It is an arithmetic number, because the mean of its divisors is an integer number (77217670446199).

Almost surely, 2^{154435340892397} is an apocalyptic number.

It is an amenable number.

154435340892397 is a deficient number, since it is larger than the sum of its proper divisors (1).

154435340892397 is an equidigital number, since it uses as much as digits as its factorization.

154435340892397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 391910400, while the sum is 67.

The spelling of 154435340892397 in words is "one hundred fifty-four trillion, four hundred thirty-five billion, three hundred forty million, eight hundred ninety-two thousand, three hundred ninety-seven".