219008157 has 4 divisors (see below), whose sum is σ = 292010880. Its totient is φ = 146005436.

The previous prime is 219008147. The next prime is 219008197. The reversal of 219008157 is 751800912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 219008157 - 2¹² = 219004061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219008107) 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, 36501357 + ... + 36501362.

It is an arithmetic number, because the mean of its divisors is an integer number (73002720).

Almost surely, 2^219008157 is an apocalyptic number.

It is an amenable number.

219008157 is a deficient number, since it is larger than the sum of its proper divisors (73002723).

219008157 is an equidigital number, since it uses as much as digits as its factorization.

219008157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73002722.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 219008157 is about 14798.9241838723. The cubic root of 219008157 is about 602.7724995663.

The spelling of 219008157 in words is "two hundred nineteen million, eight thousand, one hundred fifty-seven".