2148157454 has 8 divisors (see below), whose sum is σ = 3225395208. Its totient is φ = 1073025720.

The previous prime is 2148157447. The next prime is 2148157477. The reversal of 2148157454 is 4547518412.

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

It is a super-2 number, since 2×2148157454² = 9229160894351524232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523952 + ... + 528035.

It is an arithmetic number, because the mean of its divisors is an integer number (403174401).

Almost surely, 2^2148157454 is an apocalyptic number.

2148157454 is a deficient number, since it is larger than the sum of its proper divisors (1077237754).

2148157454 is a wasteful number, since it uses less digits than its factorization.

2148157454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053010.

The product of its digits is 179200, while the sum is 41.

The square root of 2148157454 is about 46348.2195343036. The cubic root of 2148157454 is about 1290.2940767367.

The spelling of 2148157454 in words is "two billion, one hundred forty-eight million, one hundred fifty-seven thousand, four hundred fifty-four".