219940151 has 4 divisors (see below), whose sum is σ = 220000704. Its totient is φ = 219879600.

The previous prime is 219940121. The next prime is 219940177. The reversal of 219940151 is 151049912.

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 219940151 - 2⁶ = 219940087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219940121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24455 + ... + 32216.

It is an arithmetic number, because the mean of its divisors is an integer number (55000176).

Almost surely, 2^219940151 is an apocalyptic number.

219940151 is a deficient number, since it is larger than the sum of its proper divisors (60553).

219940151 is an equidigital number, since it uses as much as digits as its factorization.

219940151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60552.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 219940151 is about 14830.3793275830. The cubic root of 219940151 is about 603.6263267323.

The spelling of 219940151 in words is "two hundred nineteen million, nine hundred forty thousand, one hundred fifty-one".