2154462657 has 8 divisors (see below), whose sum is σ = 2933736576. Its totient is φ = 1405748592.

The previous prime is 2154462643. The next prime is 2154462679. The reversal of 2154462657 is 7562644512.

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

It is not a de Polignac number, because 2154462657 - 2¹⁸ = 2154200513 is a prime.

It is a super-3 number, since 3×2154462657³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154462617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7639798 + ... + 7640079.

It is an arithmetic number, because the mean of its divisors is an integer number (366717072).

Almost surely, 2^2154462657 is an apocalyptic number.

It is an amenable number.

2154462657 is a deficient number, since it is larger than the sum of its proper divisors (779273919).

2154462657 is a wasteful number, since it uses less digits than its factorization.

2154462657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15279927.

The product of its digits is 403200, while the sum is 42.

The square root of 2154462657 is about 46416.1896001815. The cubic root of 2154462657 is about 1291.5552535763. Note that the first 3 decimals are identical.

The spelling of 2154462657 in words is "two billion, one hundred fifty-four million, four hundred sixty-two thousand, six hundred fifty-seven".