154842073 has 2 divisors, whose sum is σ = 154842074. Its totient is φ = 154842072.

The previous prime is 154842059. The next prime is 154842113. The reversal of 154842073 is 370248451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141063129 + 13778944 = 11877^2 + 3712^2 .

It is an emirp because it is prime and its reverse (370248451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154842073 - 2⁵ = 154842041 is a prime.

It is not a weakly prime, because it can be changed into another prime (154842043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77421036 + 77421037.

It is an arithmetic number, because the mean of its divisors is an integer number (77421037).

Almost surely, 2^154842073 is an apocalyptic number.

It is an amenable number.

154842073 is a deficient number, since it is larger than the sum of its proper divisors (1).

154842073 is an equidigital number, since it uses as much as digits as its factorization.

154842073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 154842073 is about 12443.5554806494. Note that the first 3 decimals coincide. The cubic root of 154842073 is about 536.9860360463.

The spelling of 154842073 in words is "one hundred fifty-four million, eight hundred forty-two thousand, seventy-three".