153405000421 has 12 divisors (see below), whose sum is σ = 160399771308. Its totient is φ = 146703195584.

The previous prime is 153405000373. The next prime is 153405000479. The reversal of 153405000421 is 124000504351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 104723432100 + 48681568321 = 323610^2 + 220639^2 .

It is not a de Polignac number, because 153405000421 - 2¹³ = 153404992229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153405000481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2601561 + ... + 2659873.

It is an arithmetic number, because the mean of its divisors is an integer number (13366647609).

Almost surely, 2^153405000421 is an apocalyptic number.

It is an amenable number.

153405000421 is a deficient number, since it is larger than the sum of its proper divisors (6994770887).

153405000421 is an equidigital number, since it uses as much as digits as its factorization.

153405000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63332 (or 63309 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 153405000421 its reverse (124000504351), we get a palindrome (277405504772).

The spelling of 153405000421 in words is "one hundred fifty-three billion, four hundred five million, four hundred twenty-one", and thus it is an aban number.