162101745 has 24 divisors (see below), whose sum is σ = 302591016. Its totient is φ = 79803648.

The previous prime is 162101729. The next prime is 162101747. The reversal of 162101745 is 547101261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2509056 + 159592689 = 1584^2 + 12633^2 .

It is not a de Polignac number, because 162101745 - 2⁴ = 162101729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162101747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137964 + ... + 139133.

It is an arithmetic number, because the mean of its divisors is an integer number (12607959).

Almost surely, 2^162101745 is an apocalyptic number.

162101745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162101745 is a deficient number, since it is larger than the sum of its proper divisors (140489271).

162101745 is a wasteful number, since it uses less digits than its factorization.

162101745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277121 (or 277118 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 162101745 is about 12731.9183550634. The cubic root of 162101745 is about 545.2502792340.

It can be divided in two parts, 16210 and 1745, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 162101745 in words is "one hundred sixty-two million, one hundred one thousand, seven hundred forty-five".