1370200385 has 4 divisors (see below), whose sum is σ = 1644240468. Its totient is φ = 1096160304.

The previous prime is 1370200339. The next prime is 1370200397. The reversal of 1370200385 is 5830020731.

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 488763664 + 881436721 = 22108^2 + 29689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370200385 - 2¹⁴ = 1370184001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137020034 + ... + 137020043.

It is an arithmetic number, because the mean of its divisors is an integer number (411060117).

Almost surely, 2^1370200385 is an apocalyptic number.

It is an amenable number.

1370200385 is a deficient number, since it is larger than the sum of its proper divisors (274040083).

1370200385 is an equidigital number, since it uses as much as digits as its factorization.

1370200385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274040082.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1370200385 is about 37016.2178646063. The cubic root of 1370200385 is about 1110.6946886433.

The spelling of 1370200385 in words is "one billion, three hundred seventy million, two hundred thousand, three hundred eighty-five".