20162953 has 8 divisors (see below), whose sum is σ = 20661120. Its totient is φ = 19667760.

The previous prime is 20162951. The next prime is 20162957. The reversal of 20162953 is 35926102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20162953 - 2¹ = 20162951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20162951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19278 + ... + 20296.

It is an arithmetic number, because the mean of its divisors is an integer number (2582640).

Almost surely, 2^20162953 is an apocalyptic number.

It is an amenable number.

20162953 is a deficient number, since it is larger than the sum of its proper divisors (498167).

20162953 is a wasteful number, since it uses less digits than its factorization.

20162953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 20162953 is about 4490.3176947739. The cubic root of 20162953 is about 272.1769726693.

It can be divided in two parts, 20162 and 953, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 20162953 in words is "twenty million, one hundred sixty-two thousand, nine hundred fifty-three".