102132477 has 6 divisors (see below), whose sum is σ = 147524702. Its totient is φ = 68088312.

The previous prime is 102132473. The next prime is 102132487. The reversal of 102132477 is 774231201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98188281 + 3944196 = 9909^2 + 1986^2 .

It is not a de Polignac number, because 102132477 - 2² = 102132473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102132477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102132473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5674018 + ... + 5674035.

Almost surely, 2^102132477 is an apocalyptic number.

It is an amenable number.

102132477 is a deficient number, since it is larger than the sum of its proper divisors (45392225).

102132477 is a wasteful number, since it uses less digits than its factorization.

102132477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348059 (or 11348056 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 102132477 is about 10106.0613989823. The cubic root of 102132477 is about 467.4350650943.

Adding to 102132477 its reverse (774231201), we get a palindrome (876363678).

The spelling of 102132477 in words is "one hundred two million, one hundred thirty-two thousand, four hundred seventy-seven".