153421453 has 4 divisors (see below), whose sum is σ = 153549148. Its totient is φ = 153293760.

The previous prime is 153421451. The next prime is 153421469. The reversal of 153421453 is 354124351.

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 15194404 + 138227049 = 3898^2 + 11757^2 .

It is a cyclic number.

It is not a de Polignac number, because 153421453 - 2¹ = 153421451 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 (153421451) 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 3 ways as a sum of consecutive naturals, for example, 62028 + ... + 64453.

It is an arithmetic number, because the mean of its divisors is an integer number (38387287).

Almost surely, 2^153421453 is an apocalyptic number.

It is an amenable number.

153421453 is a deficient number, since it is larger than the sum of its proper divisors (127695).

153421453 is a wasteful number, since it uses less digits than its factorization.

153421453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127694.

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

The square root of 153421453 is about 12386.3413888040. The cubic root of 153421453 is about 535.3387705041.

The spelling of 153421453 in words is "one hundred fifty-three million, four hundred twenty-one thousand, four hundred fifty-three".