981430155 has 16 divisors (see below), whose sum is σ = 1744764960. Its totient is φ = 523429344.

The previous prime is 981430127. The next prime is 981430157. The reversal of 981430155 is 551034189.

It is not a de Polignac number, because 981430155 - 2⁷ = 981430027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981430157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3634792 + ... + 3635061.

It is an arithmetic number, because the mean of its divisors is an integer number (109047810).

Almost surely, 2^981430155 is an apocalyptic number.

981430155 is a deficient number, since it is larger than the sum of its proper divisors (763334805).

981430155 is a wasteful number, since it uses less digits than its factorization.

981430155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269867 (or 7269861 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 981430155 is about 31327.7856702321. The cubic root of 981430155 is about 993.7713359606.

The spelling of 981430155 in words is "nine hundred eighty-one million, four hundred thirty thousand, one hundred fifty-five".