153421440133 has 16 divisors (see below), whose sum is σ = 170091863536. Its totient is φ = 137464750080.

The previous prime is 153421440101. The next prime is 153421440191. The reversal of 153421440133 is 331044124351.

It can be written as a sum of positive squares in 8 ways, for example, as 51828164964 + 101593275169 = 227658^2 + 318737^2 .

It is a cyclic number.

It is not a de Polignac number, because 153421440133 - 2⁵ = 153421440101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153421440095 and 153421440104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153421440433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176316 + ... + 581317.

It is an arithmetic number, because the mean of its divisors is an integer number (10630741471).

Almost surely, 2^153421440133 is an apocalyptic number.

153421440133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

153421440133 is a deficient number, since it is larger than the sum of its proper divisors (16670423403).

153421440133 is a wasteful number, since it uses less digits than its factorization.

153421440133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758104.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 153421440133 its reverse (331044124351), we get a palindrome (484465564484).

The spelling of 153421440133 in words is "one hundred fifty-three billion, four hundred twenty-one million, four hundred forty thousand, one hundred thirty-three".