102148477 has 2 divisors, whose sum is σ = 102148478. Its totient is φ = 102148476.

The previous prime is 102148447. The next prime is 102148483. The reversal of 102148477 is 774841201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62948356 + 39200121 = 7934^2 + 6261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102148477 is a prime.

It is a super-2 number, since 2×102148477² = 20868622706839058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102148447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51074238 + 51074239.

It is an arithmetic number, because the mean of its divisors is an integer number (51074239).

Almost surely, 2^102148477 is an apocalyptic number.

It is an amenable number.

102148477 is a deficient number, since it is larger than the sum of its proper divisors (1).

102148477 is an equidigital number, since it uses as much as digits as its factorization.

102148477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 102148477 is about 10106.8529721175. The cubic root of 102148477 is about 467.4594731662.

Adding to 102148477 its reverse (774841201), we get a palindrome (876989678).

The spelling of 102148477 in words is "one hundred two million, one hundred forty-eight thousand, four hundred seventy-seven".