154420432213 has 2 divisors, whose sum is σ = 154420432214. Its totient is φ = 154420432212.

The previous prime is 154420432183. The next prime is 154420432237. The reversal of 154420432213 is 312234024451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102206811204 + 52213621009 = 319698^2 + 228503^2 .

It is a cyclic number.

It is not a de Polignac number, because 154420432213 - 2²⁹ = 153883561301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154420432513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77210216106 + 77210216107.

It is an arithmetic number, because the mean of its divisors is an integer number (77210216107).

Almost surely, 2^154420432213 is an apocalyptic number.

It is an amenable number.

154420432213 is a deficient number, since it is larger than the sum of its proper divisors (1).

154420432213 is an equidigital number, since it uses as much as digits as its factorization.

154420432213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 154420432213 its reverse (312234024451), we get a palindrome (466654456664).

The spelling of 154420432213 in words is "one hundred fifty-four billion, four hundred twenty million, four hundred thirty-two thousand, two hundred thirteen".