102376642 has 4 divisors (see below), whose sum is σ = 153564966. Its totient is φ = 51188320.

The previous prime is 102376639. The next prime is 102376649. The reversal of 102376642 is 246673201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246673201 = 89 ⋅2771609.

It can be written as a sum of positive squares in only one way, i.e., 67223601 + 35153041 = 8199^2 + 5929^2 .

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 not an unprimeable number, because it can be changed into a prime (102376649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25594159 + ... + 25594162.

Almost surely, 2^102376642 is an apocalyptic number.

102376642 is a deficient number, since it is larger than the sum of its proper divisors (51188324).

102376642 is an equidigital number, since it uses as much as digits as its factorization.

102376642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51188323.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 102376642 is about 10118.1343141905. The cubic root of 102376642 is about 467.8072629057.

The spelling of 102376642 in words is "one hundred two million, three hundred seventy-six thousand, six hundred forty-two".