147162121 has 2 divisors, whose sum is σ = 147162122. Its totient is φ = 147162120.

The previous prime is 147162109. The next prime is 147162131. The reversal of 147162121 is 121261741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113103225 + 34058896 = 10635^2 + 5836^2 .

It is a cyclic number.

It is not a de Polignac number, because 147162121 - 2⁵ = 147162089 is a prime.

It is not a weakly prime, because it can be changed into another prime (147162131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73581060 + 73581061.

It is an arithmetic number, because the mean of its divisors is an integer number (73581061).

Almost surely, 2^147162121 is an apocalyptic number.

It is an amenable number.

147162121 is a deficient number, since it is larger than the sum of its proper divisors (1).

147162121 is an equidigital number, since it uses as much as digits as its factorization.

147162121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 25.

The square root of 147162121 is about 12131.0395679843. The cubic root of 147162121 is about 527.9571545142.

The spelling of 147162121 in words is "one hundred forty-seven million, one hundred sixty-two thousand, one hundred twenty-one".