2154402433 has 4 divisors (see below), whose sum is σ = 2248072128. Its totient is φ = 2060732740.

The previous prime is 2154402421. The next prime is 2154402449. The reversal of 2154402433 is 3342044512.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-2154402433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154402413) 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, 46834813 + ... + 46834858.

It is an arithmetic number, because the mean of its divisors is an integer number (562018032).

Almost surely, 2^2154402433 is an apocalyptic number.

2154402433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2154402433 is a deficient number, since it is larger than the sum of its proper divisors (93669695).

2154402433 is an equidigital number, since it uses as much as digits as its factorization.

2154402433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93669694.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2154402433 is about 46415.5408564847. The cubic root of 2154402433 is about 1291.5432191219.

Adding to 2154402433 its reverse (3342044512), we get a palindrome (5496446945).

The spelling of 2154402433 in words is "two billion, one hundred fifty-four million, four hundred two thousand, four hundred thirty-three".