102270874 has 4 divisors (see below), whose sum is σ = 153406314. Its totient is φ = 51135436.

The previous prime is 102270821. The next prime is 102270913. The reversal of 102270874 is 478072201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478072201 = 20029 ⋅23869.

It can be written as a sum of positive squares in only one way, i.e., 80227849 + 22043025 = 8957^2 + 4695^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25567717 + ... + 25567720.

Almost surely, 2^102270874 is an apocalyptic number.

102270874 is a deficient number, since it is larger than the sum of its proper divisors (51135440).

102270874 is an equidigital number, since it uses as much as digits as its factorization.

102270874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51135439.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 102270874 is about 10112.9063082776. The cubic root of 102270874 is about 467.6461060676.

The spelling of 102270874 in words is "one hundred two million, two hundred seventy thousand, eight hundred seventy-four".