83142261 has 16 divisors (see below), whose sum is σ = 123995520. Its totient is φ = 55058400.

The previous prime is 83142259. The next prime is 83142313. The reversal of 83142261 is 16224138.

It is not a de Polignac number, because 83142261 - 2¹ = 83142259 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83142211) 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, 6120 + ... + 14273.

It is an arithmetic number, because the mean of its divisors is an integer number (7749720).

Almost surely, 2^83142261 is an apocalyptic number.

It is an amenable number.

83142261 is a deficient number, since it is larger than the sum of its proper divisors (40853259).

83142261 is a wasteful number, since it uses less digits than its factorization.

83142261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20553 (or 20547 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 83142261 is about 9118.2378231761. The cubic root of 83142261 is about 436.4561427813.

Adding to 83142261 its reverse (16224138), we get a palindrome (99366399).

The spelling of 83142261 in words is "eighty-three million, one hundred forty-two thousand, two hundred sixty-one".