219148963 has 4 divisors (see below), whose sum is σ = 239071608. Its totient is φ = 199226320.

The previous prime is 219148957. The next prime is 219148987. The reversal of 219148963 is 369841912.

It is a happy number.

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 219148963 - 2⁵ = 219148931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219148933) 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, 9961306 + ... + 9961327.

It is an arithmetic number, because the mean of its divisors is an integer number (59767902).

Almost surely, 2^219148963 is an apocalyptic number.

219148963 is a deficient number, since it is larger than the sum of its proper divisors (19922645).

219148963 is a wasteful number, since it uses less digits than its factorization.

219148963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19922644.

The product of its digits is 93312, while the sum is 43.

The square root of 219148963 is about 14803.6807247387. The cubic root of 219148963 is about 602.9016512274.

The spelling of 219148963 in words is "two hundred nineteen million, one hundred forty-eight thousand, nine hundred sixty-three".