153420505 has 8 divisors (see below), whose sum is σ = 210405312. Its totient is φ = 105202608.

The previous prime is 153420503. The next prime is 153420521. The reversal of 153420505 is 505024351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153420505 - 2¹ = 153420503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153420505.

It is not an unprimeable number, because it can be changed into a prime (153420503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2191687 + ... + 2191756.

It is an arithmetic number, because the mean of its divisors is an integer number (26300664).

Almost surely, 2^153420505 is an apocalyptic number.

It is an amenable number.

153420505 is a deficient number, since it is larger than the sum of its proper divisors (56984807).

153420505 is an equidigital number, since it uses as much as digits as its factorization.

153420505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383455.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 153420505 is about 12386.3031207863. The cubic root of 153420505 is about 535.3376678721.

Adding to 153420505 its reverse (505024351), we get a palindrome (658444856).

The spelling of 153420505 in words is "one hundred fifty-three million, four hundred twenty thousand, five hundred five".