838190153 has 4 divisors (see below), whose sum is σ = 841529808. Its totient is φ = 834850500.

The previous prime is 838190131. The next prime is 838190209. The reversal of 838190153 is 351091838.

838190153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351091838 = 2 ⋅175545919.

It is a cyclic number.

It is not a de Polignac number, because 838190153 - 2¹⁸ = 837928009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838190953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669451 + ... + 1669952.

It is an arithmetic number, because the mean of its divisors is an integer number (210382452).

Almost surely, 2^838190153 is an apocalyptic number.

It is an amenable number.

838190153 is a deficient number, since it is larger than the sum of its proper divisors (3339655).

838190153 is a wasteful number, since it uses less digits than its factorization.

838190153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339654.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 838190153 is about 28951.5138291593. The cubic root of 838190153 is about 942.8606656030.

The spelling of 838190153 in words is "eight hundred thirty-eight million, one hundred ninety thousand, one hundred fifty-three".