154898081 has 4 divisors (see below), whose sum is σ = 166813332. Its totient is φ = 142982832.

The previous prime is 154898059. The next prime is 154898099. The reversal of 154898081 is 180898451.

154898081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77721856 + 77176225 = 8816^2 + 8785^2 .

It is a cyclic number.

It is not a de Polignac number, because 154898081 - 2²⁶ = 87789217 is a prime.

It is a super-2 number, since 2×154898081² = 47986830994965122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154892081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957606 + ... + 5957631.

It is an arithmetic number, because the mean of its divisors is an integer number (41703333).

Almost surely, 2^154898081 is an apocalyptic number.

It is an amenable number.

154898081 is a deficient number, since it is larger than the sum of its proper divisors (11915251).

154898081 is a wasteful number, since it uses less digits than its factorization.

154898081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915250.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 154898081 is about 12445.8057593713. The cubic root of 154898081 is about 537.0507727332.

The spelling of 154898081 in words is "one hundred fifty-four million, eight hundred ninety-eight thousand, eighty-one".