102722043 has 4 divisors (see below), whose sum is σ = 136962728. Its totient is φ = 68481360.

The previous prime is 102722017. The next prime is 102722057. The reversal of 102722043 is 340227201.

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

It is not a de Polignac number, because 102722043 - 2¹² = 102717947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102722083) 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, 17120338 + ... + 17120343.

It is an arithmetic number, because the mean of its divisors is an integer number (34240682).

Almost surely, 2^102722043 is an apocalyptic number.

102722043 is a deficient number, since it is larger than the sum of its proper divisors (34240685).

102722043 is an equidigital number, since it uses as much as digits as its factorization.

102722043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34240684.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 102722043 is about 10135.1883554278. The cubic root of 102722043 is about 468.3327724932.

Adding to 102722043 its reverse (340227201), we get a palindrome (442949244).

The spelling of 102722043 in words is "one hundred two million, seven hundred twenty-two thousand, forty-three".