155166145 has 8 divisors (see below), whose sum is σ = 190529856. Its totient is φ = 121245936.

The previous prime is 155166133. The next prime is 155166149. The reversal of 155166145 is 541661551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155166145 - 2⁵ = 155166113 is a prime.

It is a super-2 number, since 2×155166145² = 48153065108322050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155166145.

It is not an unprimeable number, because it can be changed into a prime (155166149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360637 + ... + 361066.

It is an arithmetic number, because the mean of its divisors is an integer number (23816232).

Almost surely, 2^155166145 is an apocalyptic number.

It is an amenable number.

155166145 is a deficient number, since it is larger than the sum of its proper divisors (35363711).

155166145 is an equidigital number, since it uses as much as digits as its factorization.

155166145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721751.

The product of its digits is 18000, while the sum is 34.

The square root of 155166145 is about 12456.5703546361. The cubic root of 155166145 is about 537.3603978535.

The spelling of 155166145 in words is "one hundred fifty-five million, one hundred sixty-six thousand, one hundred forty-five".