1219541342 has 16 divisors (see below), whose sum is σ = 1973467152. Its totient is φ = 563072640.

The previous prime is 1219541287. The next prime is 1219541347. The reversal of 1219541342 is 2431459121.

It is a junction number, because it is equal to n+sod(n) for n = 1219541299 and 1219541308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219541347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336584 + ... + 340187.

It is an arithmetic number, because the mean of its divisors is an integer number (123341697).

Almost surely, 2^1219541342 is an apocalyptic number.

1219541342 is a deficient number, since it is larger than the sum of its proper divisors (753925810).

1219541342 is a wasteful number, since it uses less digits than its factorization.

1219541342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676843.

The product of its digits is 8640, while the sum is 32.

The square root of 1219541342 is about 34921.9321057699. The cubic root of 1219541342 is about 1068.3958090729.

The spelling of 1219541342 in words is "one billion, two hundred nineteen million, five hundred forty-one thousand, three hundred forty-two".