154897 has 2 divisors, whose sum is σ = 154898. Its totient is φ = 154896.

The previous prime is 154883. The next prime is 154927. The reversal of 154897 is 798451.

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., 108241 + 46656 = 329^2 + 216^2 .

It is an emirp because it is prime and its reverse (798451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154897 - 2⁷ = 154769 is a prime.

It is not a weakly prime, because it can be changed into another prime (154807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77448 + 77449.

It is an arithmetic number, because the mean of its divisors is an integer number (77449).

2¹⁵⁴⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

154897 is a deficient number, since it is larger than the sum of its proper divisors (1).

154897 is an equidigital number, since it uses as much as digits as its factorization.

154897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 154897 is about 393.5695618312. The cubic root of 154897 is about 53.7049523410.

The spelling of 154897 in words is "one hundred fifty-four thousand, eight hundred ninety-seven".