162103813 has 4 divisors (see below), whose sum is σ = 164155840. Its totient is φ = 160051788.

The previous prime is 162103807. The next prime is 162103831. The reversal of 162103813 is 318301261.

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.

It is not a de Polignac number, because 162103813 - 2²¹ = 160006661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162103883) 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, 1025895 + ... + 1026052.

It is an arithmetic number, because the mean of its divisors is an integer number (41038960).

Almost surely, 2^162103813 is an apocalyptic number.

It is an amenable number.

162103813 is a deficient number, since it is larger than the sum of its proper divisors (2052027).

162103813 is an equidigital number, since it uses as much as digits as its factorization.

162103813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052026.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 162103813 is about 12731.9995680176. Note that the first 3 decimals coincide. The cubic root of 162103813 is about 545.2525978863.

The spelling of 162103813 in words is "one hundred sixty-two million, one hundred three thousand, eight hundred thirteen".