154837481 has 2 divisors, whose sum is σ = 154837482. Its totient is φ = 154837480.

The previous prime is 154837457. The next prime is 154837493. The reversal of 154837481 is 184738451.

154837481 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., 142587481 + 12250000 = 11941^2 + 3500^2 .

It is an emirp because it is prime and its reverse (184738451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154837481 is a prime.

It is a super-2 number, since 2×154837481² = 47949291044850722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154837421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77418740 + 77418741.

It is an arithmetic number, because the mean of its divisors is an integer number (77418741).

Almost surely, 2^154837481 is an apocalyptic number.

It is an amenable number.

154837481 is a deficient number, since it is larger than the sum of its proper divisors (1).

154837481 is an equidigital number, since it uses as much as digits as its factorization.

154837481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 41.

The square root of 154837481 is about 12443.3709661008. The cubic root of 154837481 is about 536.9807277038.

The spelling of 154837481 in words is "one hundred fifty-four million, eight hundred thirty-seven thousand, four hundred eighty-one".