102422774 has 4 divisors (see below), whose sum is σ = 153634164. Its totient is φ = 51211386.

The previous prime is 102422767. The next prime is 102422779. The reversal of 102422774 is 477224201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477224201 = 4801 ⋅99401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102422779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25605692 + ... + 25605695.

It is an arithmetic number, because the mean of its divisors is an integer number (38408541).

Almost surely, 2^102422774 is an apocalyptic number.

102422774 is a deficient number, since it is larger than the sum of its proper divisors (51211390).

102422774 is an equidigital number, since it uses as much as digits as its factorization.

102422774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51211389.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 102422774 is about 10120.4137267209. The cubic root of 102422774 is about 467.8775186577.

Adding to 102422774 its reverse (477224201), we get a palindrome (579646975).

The spelling of 102422774 in words is "one hundred two million, four hundred twenty-two thousand, seven hundred seventy-four".