983131155 has 48 divisors (see below), whose sum is σ = 1844710560. Its totient is φ = 496715328.

The previous prime is 983131153. The next prime is 983131183. The reversal of 983131155 is 551131389.

It is not a de Polignac number, because 983131155 - 2¹ = 983131153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (983131153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38649 + ... + 58821.

It is an arithmetic number, because the mean of its divisors is an integer number (38431470).

Almost surely, 2^983131155 is an apocalyptic number.

983131155 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

983131155 is a deficient number, since it is larger than the sum of its proper divisors (861579405).

983131155 is a wasteful number, since it uses less digits than its factorization.

983131155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20225 (or 20200 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 983131155 is about 31354.9223408383. The cubic root of 983131155 is about 994.3451344383.

It can be divided in two parts, 98 and 3131155, that added together give a triangular number (3131253 = T₂₅₀₂).

The spelling of 983131155 in words is "nine hundred eighty-three million, one hundred thirty-one thousand, one hundred fifty-five".