2154133337 has 4 divisors (see below), whose sum is σ = 2169857076. Its totient is φ = 2138409600.

The previous prime is 2154133313. The next prime is 2154133343. The reversal of 2154133337 is 7333314512.

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 805481161 + 1348652176 = 28381^2 + 36724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154133337 - 2⁶ = 2154133273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154193337) 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, 7861664 + ... + 7861937.

It is an arithmetic number, because the mean of its divisors is an integer number (542464269).

Almost surely, 2^2154133337 is an apocalyptic number.

It is an amenable number.

2154133337 is a deficient number, since it is larger than the sum of its proper divisors (15723739).

2154133337 is a wasteful number, since it uses less digits than its factorization.

2154133337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15723738.

The product of its digits is 22680, while the sum is 32.

The square root of 2154133337 is about 46412.6419954736. The cubic root of 2154133337 is about 1291.4894434082.

Adding to 2154133337 its reverse (7333314512), we get a palindrome (9487447849).

The spelling of 2154133337 in words is "two billion, one hundred fifty-four million, one hundred thirty-three thousand, three hundred thirty-seven".