20370149 has 2 divisors, whose sum is σ = 20370150. Its totient is φ = 20370148.

The previous prime is 20370137. The next prime is 20370167. The reversal of 20370149 is 94107302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17581249 + 2788900 = 4193^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 20370149 - 2²⁰ = 19321573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20370169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10185074 + 10185075.

It is an arithmetic number, because the mean of its divisors is an integer number (10185075).

Almost surely, 2^20370149 is an apocalyptic number.

It is an amenable number.

20370149 is a deficient number, since it is larger than the sum of its proper divisors (1).

20370149 is an equidigital number, since it uses as much as digits as its factorization.

20370149 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 20370149 is about 4513.3301452475. The cubic root of 20370149 is about 273.1061008869.

The spelling of 20370149 in words is "twenty million, three hundred seventy thousand, one hundred forty-nine".