102673381 has 4 divisors (see below), whose sum is σ = 102726892. Its totient is φ = 102619872.

The previous prime is 102673343. The next prime is 102673391. The reversal of 102673381 is 183376201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89605156 + 13068225 = 9466^2 + 3615^2 .

It is a cyclic number.

It is not a de Polignac number, because 102673381 - 2¹⁷ = 102542309 is a prime.

It is a super-2 number, since 2×102673381² = 21083646331942322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102673301) 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, 23766 + ... + 27751.

It is an arithmetic number, because the mean of its divisors is an integer number (25681723).

Almost surely, 2^102673381 is an apocalyptic number.

It is an amenable number.

102673381 is a deficient number, since it is larger than the sum of its proper divisors (53511).

102673381 is an equidigital number, since it uses as much as digits as its factorization.

102673381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53510.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 102673381 is about 10132.7874249882. The cubic root of 102673381 is about 468.2588071644.

The spelling of 102673381 in words is "one hundred two million, six hundred seventy-three thousand, three hundred eighty-one".