20147093 has 2 divisors, whose sum is σ = 20147094. Its totient is φ = 20147092.

The previous prime is 20147089. The next prime is 20147107. The reversal of 20147093 is 39074102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20133169 + 13924 = 4487^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 20147093 - 2² = 20147089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20147033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073546 + 10073547.

It is an arithmetic number, because the mean of its divisors is an integer number (10073547).

Almost surely, 2^20147093 is an apocalyptic number.

It is an amenable number.

20147093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20147093 is an equidigital number, since it uses as much as digits as its factorization.

20147093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20147093 is about 4488.5513253164. The cubic root of 20147093 is about 272.1055899521.

The spelling of 20147093 in words is "twenty million, one hundred forty-seven thousand, ninety-three".