154846481 has 2 divisors, whose sum is σ = 154846482. Its totient is φ = 154846480.

The previous prime is 154846469. The next prime is 154846501. The reversal of 154846481 is 184648451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 52432081 = 10120^2 + 7241^2 .

It is a cyclic number.

It is not a de Polignac number, because 154846481 - 2¹⁸ = 154584337 is a prime.

It is a super-2 number, since 2×154846481² = 47954865356166722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (154146481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77423240 + 77423241.

It is an arithmetic number, because the mean of its divisors is an integer number (77423241).

Almost surely, 2^154846481 is an apocalyptic number.

It is an amenable number.

154846481 is a deficient number, since it is larger than the sum of its proper divisors (1).

154846481 is an equidigital number, since it uses as much as digits as its factorization.

154846481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 41.

The square root of 154846481 is about 12443.7325991842. The cubic root of 154846481 is about 536.9911315864.

The spelling of 154846481 in words is "one hundred fifty-four million, eight hundred forty-six thousand, four hundred eighty-one".