149952819 has 4 divisors (see below), whose sum is σ = 199937096. Its totient is φ = 99968544.

The previous prime is 149952811. The next prime is 149952827. The reversal of 149952819 is 918259941.

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

It is an interprime number because it is at equal distance from previous prime (149952811) and next prime (149952827).

It is not a de Polignac number, because 149952819 - 2³ = 149952811 is a prime.

It is a super-2 number, since 2×149952819² = 44971695852093522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149952811) 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, 24992134 + ... + 24992139.

It is an arithmetic number, because the mean of its divisors is an integer number (49984274).

Almost surely, 2^149952819 is an apocalyptic number.

149952819 is a deficient number, since it is larger than the sum of its proper divisors (49984277).

149952819 is an equidigital number, since it uses as much as digits as its factorization.

149952819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49984276.

The product of its digits is 233280, while the sum is 48.

The square root of 149952819 is about 12245.5224061695. The cubic root of 149952819 is about 531.2735706451.

The spelling of 149952819 in words is "one hundred forty-nine million, nine hundred fifty-two thousand, eight hundred nineteen".