149999055 has 8 divisors (see below), whose sum is σ = 239998512. Its totient is φ = 79999488.

The previous prime is 149999051. The next prime is 149999071. The reversal of 149999055 is 550999941.

It is a happy number.

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

It is not a de Polignac number, because 149999055 - 2² = 149999051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149998989 and 149999007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149999051) 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, 4999954 + ... + 4999983.

It is an arithmetic number, because the mean of its divisors is an integer number (29999814).

Almost surely, 2^149999055 is an apocalyptic number.

149999055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149999055 is a deficient number, since it is larger than the sum of its proper divisors (89999457).

149999055 is an equidigital number, since it uses as much as digits as its factorization.

149999055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999945.

The product of its (nonzero) digits is 656100, while the sum is 51.

The square root of 149999055 is about 12247.4101343917. The cubic root of 149999055 is about 531.3281687975.

The spelling of 149999055 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, fifty-five".