102999077 has 4 divisors (see below), whose sum is σ = 104156460. Its totient is φ = 101841696.

The previous prime is 102999059. The next prime is 102999079. The reversal of 102999077 is 770999201.

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 8014561 + 94984516 = 2831^2 + 9746^2 .

It is a cyclic number.

It is not a de Polignac number, because 102999077 - 2¹⁶ = 102933541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102999079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578558 + ... + 578735.

It is an arithmetic number, because the mean of its divisors is an integer number (26039115).

Almost surely, 2^102999077 is an apocalyptic number.

It is an amenable number.

102999077 is a deficient number, since it is larger than the sum of its proper divisors (1157383).

102999077 is an equidigital number, since it uses as much as digits as its factorization.

102999077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157382.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 102999077 is about 10148.8460920442. The cubic root of 102999077 is about 468.7534145648.

The spelling of 102999077 in words is "one hundred two million, nine hundred ninety-nine thousand, seventy-seven".