83453131 has 4 divisors (see below), whose sum is σ = 87081552. Its totient is φ = 79824712.

The previous prime is 83453129. The next prime is 83453137. The reversal of 83453131 is 13135438.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83453131 - 2¹ = 83453129 is a prime.

It is a super-2 number, since 2×83453131² = 13928850147406322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83453131.

It is not an unprimeable number, because it can be changed into a prime (83453137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814176 + ... + 1814221.

It is an arithmetic number, because the mean of its divisors is an integer number (21770388).

Almost surely, 2^83453131 is an apocalyptic number.

83453131 is a deficient number, since it is larger than the sum of its proper divisors (3628421).

83453131 is a wasteful number, since it uses less digits than its factorization.

83453131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628420.

The product of its digits is 4320, while the sum is 28.

The square root of 83453131 is about 9135.2685236943. The cubic root of 83453131 is about 436.9994379534. Note that the first 3 decimals are identical.

Adding to 83453131 its reverse (13135438), we get a palindrome (96588569).

It can be divided in two parts, 8345 and 3131, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 83453131 in words is "eighty-three million, four hundred fifty-three thousand, one hundred thirty-one".