152020105 has 4 divisors (see below), whose sum is σ = 182424132. Its totient is φ = 121616080.

The previous prime is 152020067. The next prime is 152020109. The reversal of 152020105 is 501020251.

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 50353216 + 101666889 = 7096^2 + 10083^2 .

It is not a de Polignac number, because 152020105 - 2²⁷ = 17802377 is a prime.

It is a super-2 number, since 2×152020105² = 46220224648422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152020109) 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, 15202006 + ... + 15202015.

It is an arithmetic number, because the mean of its divisors is an integer number (45606033).

Almost surely, 2^152020105 is an apocalyptic number.

It is an amenable number.

152020105 is a deficient number, since it is larger than the sum of its proper divisors (30404027).

152020105 is an equidigital number, since it uses as much as digits as its factorization.

152020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30404026.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 152020105 is about 12329.6433443957. The cubic root of 152020105 is about 533.7038586260.

Adding to 152020105 its reverse (501020251), we get a palindrome (653040356).

The spelling of 152020105 in words is "one hundred fifty-two million, twenty thousand, one hundred five".