162306145 has 4 divisors (see below), whose sum is σ = 194767380. Its totient is φ = 129844912.

The previous prime is 162306107. The next prime is 162306149. The reversal of 162306145 is 541603261.

162306145 = 9008² + 9009².

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 81144064 + 81162081 = 9008^2 + 9009^2 .

It is a cyclic number.

It is not a de Polignac number, because 162306145 - 2⁷ = 162306017 is a prime.

It is a super-2 number, since 2×162306145² = 52686569409522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162306149) 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, 16230610 + ... + 16230619.

It is an arithmetic number, because the mean of its divisors is an integer number (48691845).

Almost surely, 2^162306145 is an apocalyptic number.

162306145 is the 9009-th centered square number.

It is an amenable number.

162306145 is a deficient number, since it is larger than the sum of its proper divisors (32461235).

162306145 is an equidigital number, since it uses as much as digits as its factorization.

162306145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32461234.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 162306145 is about 12739.9428962613. The cubic root of 162306145 is about 545.4793582946.

The spelling of 162306145 in words is "one hundred sixty-two million, three hundred six thousand, one hundred forty-five".