154051397 has 2 divisors, whose sum is σ = 154051398. Its totient is φ = 154051396.

The previous prime is 154051379. The next prime is 154051421. The reversal of 154051397 is 793150451.

Together with previous prime (154051379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153412996 + 638401 = 12386^2 + 799^2 .

It is a cyclic number.

It is not a de Polignac number, because 154051397 - 2⁸ = 154051141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154071397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77025698 + 77025699.

It is an arithmetic number, because the mean of its divisors is an integer number (77025699).

Almost surely, 2^154051397 is an apocalyptic number.

It is an amenable number.

154051397 is a deficient number, since it is larger than the sum of its proper divisors (1).

154051397 is an equidigital number, since it uses as much as digits as its factorization.

154051397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 154051397 is about 12411.7443173794. The cubic root of 154051397 is about 536.0704650899.

The spelling of 154051397 in words is "one hundred fifty-four million, fifty-one thousand, three hundred ninety-seven".