219149948 has 12 divisors (see below), whose sum is σ = 383621280. Its totient is φ = 109543872.

The previous prime is 219149947. The next prime is 219149969. The reversal of 219149948 is 849941912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219149947) 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, 16493 + ... + 26651.

It is an arithmetic number, because the mean of its divisors is an integer number (31968440).

Almost surely, 2^219149948 is an apocalyptic number.

It is an amenable number.

219149948 is a deficient number, since it is larger than the sum of its proper divisors (164471332).

219149948 is a wasteful number, since it uses less digits than its factorization.

219149948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556 (or 15554 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 219149948 is about 14803.7139934545. The cubic root of 219149948 is about 602.9025545053.

The spelling of 219149948 in words is "two hundred nineteen million, one hundred forty-nine thousand, nine hundred forty-eight".