1949152219 has 8 divisors (see below), whose sum is σ = 2228895968. Its totient is φ = 1669731840.

The previous prime is 1949152217. The next prime is 1949152223. The reversal of 1949152219 is 9122519491.

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

It is not a de Polignac number, because 1949152219 - 2¹ = 1949152217 is a prime.

It is a super-2 number, since 2×1949152219² = 7598388745665247922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949152213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67782 + ... + 92155.

It is an arithmetic number, because the mean of its divisors is an integer number (278611996).

Almost surely, 2^1949152219 is an apocalyptic number.

1949152219 is a deficient number, since it is larger than the sum of its proper divisors (279743749).

1949152219 is a wasteful number, since it uses less digits than its factorization.

1949152219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161685.

The product of its digits is 58320, while the sum is 43.

The square root of 1949152219 is about 44149.2040585105. The cubic root of 1949152219 is about 1249.1518980953.

The spelling of 1949152219 in words is "one billion, nine hundred forty-nine million, one hundred fifty-two thousand, two hundred nineteen".