154311089 has 2 divisors, whose sum is σ = 154311090. Its totient is φ = 154311088.

The previous prime is 154311049. The next prime is 154311097. The reversal of 154311089 is 980113451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88830625 + 65480464 = 9425^2 + 8092^2 .

It is an emirp because it is prime and its reverse (980113451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154311089 - 2¹² = 154306993 is a prime.

It is not a weakly prime, because it can be changed into another prime (154311049) 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, 77155544 + 77155545.

It is an arithmetic number, because the mean of its divisors is an integer number (77155545).

Almost surely, 2^154311089 is an apocalyptic number.

It is an amenable number.

154311089 is a deficient number, since it is larger than the sum of its proper divisors (1).

154311089 is an equidigital number, since it uses as much as digits as its factorization.

154311089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 154311089 is about 12422.2014554587. The cubic root of 154311089 is about 536.3715227476.

The spelling of 154311089 in words is "one hundred fifty-four million, three hundred eleven thousand, eighty-nine".