155468081 has 4 divisors (see below), whose sum is σ = 155494500. Its totient is φ = 155441664.

The previous prime is 155468059. The next prime is 155468083. The reversal of 155468081 is 180864551.

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 1311025 + 154157056 = 1145^2 + 12416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155468081 is a prime.

It is a super-2 number, since 2×155468081² = 48340648419645122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155468083) 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, 65 + ... + 17633.

It is an arithmetic number, because the mean of its divisors is an integer number (38873625).

Almost surely, 2^155468081 is an apocalyptic number.

It is an amenable number.

155468081 is a deficient number, since it is larger than the sum of its proper divisors (26419).

155468081 is an equidigital number, since it uses as much as digits as its factorization.

155468081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26418.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 155468081 is about 12468.6840123567. The cubic root of 155468081 is about 537.7087198056.

The spelling of 155468081 in words is "one hundred fifty-five million, four hundred sixty-eight thousand, eighty-one".