148919217 has 8 divisors (see below), whose sum is σ = 199160160. Its totient is φ = 98978880.

The previous prime is 148919203. The next prime is 148919219. The reversal of 148919217 is 712919841.

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

It is not a de Polignac number, because 148919217 - 2¹⁰ = 148918193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148919219) 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, 73992 + ... + 75977.

It is an arithmetic number, because the mean of its divisors is an integer number (24895020).

Almost surely, 2^148919217 is an apocalyptic number.

It is an amenable number.

148919217 is a deficient number, since it is larger than the sum of its proper divisors (50240943).

148919217 is a wasteful number, since it uses less digits than its factorization.

148919217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150303.

The product of its digits is 36288, while the sum is 42.

The square root of 148919217 is about 12203.2461664919. The cubic root of 148919217 is about 530.0500925717.

It can be divided in two parts, 1489 and 19217, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 148919217 in words is "one hundred forty-eight million, nine hundred nineteen thousand, two hundred seventeen".