102638674 has 4 divisors (see below), whose sum is σ = 153958014. Its totient is φ = 51319336.

The previous prime is 102638671. The next prime is 102638677. The reversal of 102638674 is 476836201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476836201 = 131 ⋅3639971.

It is an interprime number because it is at equal distance from previous prime (102638671) and next prime (102638677).

It can be written as a sum of positive squares in only one way, i.e., 63888049 + 38750625 = 7993^2 + 6225^2 .

It is a super-3 number, since 3×102638674³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102638671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25659667 + ... + 25659670.

Almost surely, 2^102638674 is an apocalyptic number.

102638674 is a deficient number, since it is larger than the sum of its proper divisors (51319340).

102638674 is an equidigital number, since it uses as much as digits as its factorization.

102638674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51319339.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 102638674 is about 10131.0746715242. The cubic root of 102638674 is about 468.2060388947.

The spelling of 102638674 in words is "one hundred two million, six hundred thirty-eight thousand, six hundred seventy-four".