102029791 has 12 divisors (see below), whose sum is σ = 108520992. Its totient is φ = 95907744.

The previous prime is 102029761. The next prime is 102029797. The reversal of 102029791 is 197920201.

It is not a de Polignac number, because 102029791 - 2⁷ = 102029663 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 (102029797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48426 + ... + 50488.

It is an arithmetic number, because the mean of its divisors is an integer number (9043416).

Almost surely, 2^102029791 is an apocalyptic number.

102029791 is a deficient number, since it is larger than the sum of its proper divisors (6491201).

102029791 is a wasteful number, since it uses less digits than its factorization.

102029791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 102029791 is about 10100.9797049593. The cubic root of 102029791 is about 467.2783564290.

Adding to 102029791 its reverse (197920201), we get a palindrome (299949992).

The spelling of 102029791 in words is "one hundred two million, twenty-nine thousand, seven hundred ninety-one".