1919149214 has 16 divisors (see below), whose sum is σ = 2962434816. Its totient is φ = 931983000.

The previous prime is 1919149117. The next prime is 1919149217. The reversal of 1919149214 is 4129419191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919149217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65612 + ... + 90239.

It is an arithmetic number, because the mean of its divisors is an integer number (185152176).

Almost surely, 2^1919149214 is an apocalyptic number.

1919149214 is a deficient number, since it is larger than the sum of its proper divisors (1043285602).

1919149214 is a wasteful number, since it uses less digits than its factorization.

1919149214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156031.

The product of its digits is 23328, while the sum is 41.

The square root of 1919149214 is about 43808.0953021242. The cubic root of 1919149214 is about 1242.7093926257.

The spelling of 1919149214 in words is "one billion, nine hundred nineteen million, one hundred forty-nine thousand, two hundred fourteen".