1982247155 has 16 divisors (see below), whose sum is σ = 2763079104. Its totient is φ = 1336970880.

The previous prime is 1982247151. The next prime is 1982247191. The reversal of 1982247155 is 5517422891.

It is not a de Polignac number, because 1982247155 - 2² = 1982247151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982247151) 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 15 ways as a sum of consecutive naturals, for example, 462092 + ... + 466361.

It is an arithmetic number, because the mean of its divisors is an integer number (172692444).

Almost surely, 2^1982247155 is an apocalyptic number.

1982247155 is a deficient number, since it is larger than the sum of its proper divisors (780831949).

1982247155 is an equidigital number, since it uses as much as digits as its factorization.

1982247155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928526.

The product of its digits is 201600, while the sum is 44.

The square root of 1982247155 is about 44522.4342887942. The cubic root of 1982247155 is about 1256.1821012946.

It can be divided in two parts, 198224 and 7155, that added together give a cube (205379 = 59³).

The spelling of 1982247155 in words is "one billion, nine hundred eighty-two million, two hundred forty-seven thousand, one hundred fifty-five".