2154250133 has 4 divisors (see below), whose sum is σ = 2462000160. Its totient is φ = 1846500108.

The previous prime is 2154250117. The next prime is 2154250139. The reversal of 2154250133 is 3310524512.

It is a happy number.

2154250133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 2154250133 - 2⁴ = 2154250117 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 (2154250139) 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, 153875003 + ... + 153875016.

It is an arithmetic number, because the mean of its divisors is an integer number (615500040).

Almost surely, 2^2154250133 is an apocalyptic number.

It is an amenable number.

2154250133 is a deficient number, since it is larger than the sum of its proper divisors (307750027).

2154250133 is an equidigital number, since it uses as much as digits as its factorization.

2154250133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307750026.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2154250133 is about 46413.9002131904. The cubic root of 2154250133 is about 1291.5127842838.

Adding to 2154250133 its reverse (3310524512), we get a palindrome (5464774645).

The spelling of 2154250133 in words is "two billion, one hundred fifty-four million, two hundred fifty thousand, one hundred thirty-three".