100020929 has 2 divisors, whose sum is σ = 100020930. Its totient is φ = 100020928.

The previous prime is 100020923. The next prime is 100021003. The reversal of 100020929 is 929020001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73136704 + 26884225 = 8552^2 + 5185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100020929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100020923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010464 + 50010465.

It is an arithmetic number, because the mean of its divisors is an integer number (50010465).

Almost surely, 2^100020929 is an apocalyptic number.

It is an amenable number.

100020929 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020929 is an equidigital number, since it uses as much as digits as its factorization.

100020929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 100020929 is about 10001.0463952528. The cubic root of 100020929 is about 464.1912623734.

The spelling of 100020929 in words is "one hundred million, twenty thousand, nine hundred twenty-nine".