102976745 has 4 divisors (see below), whose sum is σ = 123572100. Its totient is φ = 82381392.

The previous prime is 102976739. The next prime is 102976747. The reversal of 102976745 is 547679201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547679201 = 31 ⋅17667071.

It can be written as a sum of positive squares in 2 ways, for example, as 45535504 + 57441241 = 6748^2 + 7579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102976745 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102976747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10297670 + ... + 10297679.

It is an arithmetic number, because the mean of its divisors is an integer number (30893025).

Almost surely, 2^102976745 is an apocalyptic number.

It is an amenable number.

102976745 is a deficient number, since it is larger than the sum of its proper divisors (20595355).

102976745 is an equidigital number, since it uses as much as digits as its factorization.

102976745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20595354.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 102976745 is about 10147.7458087991. The cubic root of 102976745 is about 468.7195341385.

The spelling of 102976745 in words is "one hundred two million, nine hundred seventy-six thousand, seven hundred forty-five".