2154132506 has 8 divisors (see below), whose sum is σ = 3233079264. Its totient is φ = 1076439420.

The previous prime is 2154132503. The next prime is 2154132511. The reversal of 2154132506 is 6052314512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2154132503) 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, 309110 + ... + 316001.

It is an arithmetic number, because the mean of its divisors is an integer number (404134908).

Almost surely, 2^2154132506 is an apocalyptic number.

2154132506 is a deficient number, since it is larger than the sum of its proper divisors (1078946758).

2154132506 is a wasteful number, since it uses less digits than its factorization.

2154132506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626836.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2154132506 is about 46412.6330431705. The cubic root of 2154132506 is about 1291.4892773355.

The spelling of 2154132506 in words is "two billion, one hundred fifty-four million, one hundred thirty-two thousand, five hundred six".