153420265 has 4 divisors (see below), whose sum is σ = 184104324. Its totient is φ = 122736208.

The previous prime is 153420233. The next prime is 153420283. The reversal of 153420265 is 562024351.

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 34762816 + 118657449 = 5896^2 + 10893^2 .

It is a cyclic number.

It is not a de Polignac number, because 153420265 - 2⁵ = 153420233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15342022 + ... + 15342031.

It is an arithmetic number, because the mean of its divisors is an integer number (46026081).

Almost surely, 2^153420265 is an apocalyptic number.

It is an amenable number.

153420265 is a deficient number, since it is larger than the sum of its proper divisors (30684059).

153420265 is an equidigital number, since it uses as much as digits as its factorization.

153420265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30684058.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 153420265 is about 12386.2934326618. The cubic root of 153420265 is about 535.3373887240.

The spelling of 153420265 in words is "one hundred fifty-three million, four hundred twenty thousand, two hundred sixty-five".