154255481 has 2 divisors, whose sum is σ = 154255482. Its totient is φ = 154255480.

The previous prime is 154255469. The next prime is 154255537. The reversal of 154255481 is 184552451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 22005481 = 11500^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 154255481 - 2¹⁴ = 154239097 is a prime.

It is a super-2 number, since 2×154255481² = 47589506837082722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154255421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77127740 + 77127741.

It is an arithmetic number, because the mean of its divisors is an integer number (77127741).

Almost surely, 2^154255481 is an apocalyptic number.

It is an amenable number.

154255481 is a deficient number, since it is larger than the sum of its proper divisors (1).

154255481 is an equidigital number, since it uses as much as digits as its factorization.

154255481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32000, while the sum is 35.

The square root of 154255481 is about 12419.9630031655. The cubic root of 154255481 is about 536.3070855311.

The spelling of 154255481 in words is "one hundred fifty-four million, two hundred fifty-five thousand, four hundred eighty-one".