153121413 has 4 divisors (see below), whose sum is σ = 204161888. Its totient is φ = 102080940.

The previous prime is 153121403. The next prime is 153121417. The reversal of 153121413 is 314121351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 153121413 - 2¹³ = 153113221 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 153121413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153121417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25520233 + ... + 25520238.

It is an arithmetic number, because the mean of its divisors is an integer number (51040472).

Almost surely, 2^153121413 is an apocalyptic number.

It is an amenable number.

153121413 is a deficient number, since it is larger than the sum of its proper divisors (51040475).

153121413 is an equidigital number, since it uses as much as digits as its factorization.

153121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51040474.

The product of its digits is 360, while the sum is 21.

The square root of 153121413 is about 12374.2237332287. The cubic root of 153121413 is about 534.9895627859.

Adding to 153121413 its reverse (314121351), we get a palindrome (467242764).

The spelling of 153121413 in words is "one hundred fifty-three million, one hundred twenty-one thousand, four hundred thirteen".