148919 has 4 divisors (see below), whose sum is σ = 150144. Its totient is φ = 147696.

The previous prime is 148913. The next prime is 148921. The reversal of 148919 is 919841.

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

It is a cyclic number.

It is not a de Polignac number, because 148919 - 2⁸ = 148663 is a prime.

It is a super-2 number, since 2×148919² = 44353737122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148919.

It is not an unprimeable number, because it can be changed into a prime (148913) 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, 407 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (37536).

2¹⁴⁸⁹¹⁹ is an apocalyptic number.

148919 is a deficient number, since it is larger than the sum of its proper divisors (1225).

148919 is a wasteful number, since it uses less digits than its factorization.

148919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its digits is 2592, while the sum is 32.

The square root of 148919 is about 385.9002461777. The cubic root of 148919 is about 53.0049835115.

The spelling of 148919 in words is "one hundred forty-eight thousand, nine hundred nineteen".