154222215150281 has 2 divisors, whose sum is σ = 154222215150282. Its totient is φ = 154222215150280.

The previous prime is 154222215150253. The next prime is 154222215150401. The reversal of 154222215150281 is 182051512222451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112483948164025 + 41738266986256 = 10605845^2 + 6460516^2 .

It is a cyclic number.

It is not a de Polignac number, because 154222215150281 - 2⁴² = 149824168639177 is a prime.

It is a super-2 number, since 2×154222215150281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154222215150581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77111107575140 + 77111107575141.

It is an arithmetic number, because the mean of its divisors is an integer number (77111107575141).

Almost surely, 2^{154222215150281} is an apocalyptic number.

It is an amenable number.

154222215150281 is a deficient number, since it is larger than the sum of its proper divisors (1).

154222215150281 is an equidigital number, since it uses as much as digits as its factorization.

154222215150281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128000, while the sum is 41.

The spelling of 154222215150281 in words is "one hundred fifty-four trillion, two hundred twenty-two billion, two hundred fifteen million, one hundred fifty thousand, two hundred eighty-one".