154222049 has 2 divisors, whose sum is σ = 154222050. Its totient is φ = 154222048.

The previous prime is 154221979. The next prime is 154222067. The reversal of 154222049 is 940222451.

154222049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105431824 + 48790225 = 10268^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 154222049 - 2¹² = 154217953 is a prime.

It is not a weakly prime, because it can be changed into another prime (154222099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77111024 + 77111025.

It is an arithmetic number, because the mean of its divisors is an integer number (77111025).

Almost surely, 2^154222049 is an apocalyptic number.

It is an amenable number.

154222049 is a deficient number, since it is larger than the sum of its proper divisors (1).

154222049 is an equidigital number, since it uses as much as digits as its factorization.

154222049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 154222049 is about 12418.6170325041. The cubic root of 154222049 is about 536.2683378772.

It can be divided in two parts, 15422 and 2049, that added together give a palindrome (17471).

The spelling of 154222049 in words is "one hundred fifty-four million, two hundred twenty-two thousand, forty-nine".