102477 has 4 divisors (see below), whose sum is σ = 136640. Its totient is φ = 68316.

The previous prime is 102461. The next prime is 102481. The reversal of 102477 is 774201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774201 = 3 ⋅258067.

It is not a de Polignac number, because 102477 - 2⁴ = 102461 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17077 + ... + 17082.

It is an arithmetic number, because the mean of its divisors is an integer number (34160).

2¹⁰²⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

102477 is a deficient number, since it is larger than the sum of its proper divisors (34163).

102477 is an equidigital number, since it uses as much as digits as its factorization.

102477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34162.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 102477 is about 320.1202898912. The cubic root of 102477 is about 46.7960074028.

Adding to 102477 its reverse (774201), we get a palindrome (876678).

The spelling of 102477 in words is "one hundred two thousand, four hundred seventy-seven", and thus it is an iban number.