2151493548 has 48 divisors (see below), whose sum is σ = 5394824064. Its totient is φ = 664899840.

The previous prime is 2151493541. The next prime is 2151493571. The reversal of 2151493548 is 8453941512.

It is not an unprimeable number, because it can be changed into a prime (2151493541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65038 + ... + 92373.

It is an arithmetic number, because the mean of its divisors is an integer number (112392168).

Almost surely, 2^2151493548 is an apocalyptic number.

It is an amenable number.

2151493548 is an abundant number, since it is smaller than the sum of its proper divisors (3243330516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151493548 is a wasteful number, since it uses less digits than its factorization.

2151493548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157502 (or 157500 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 2151493548 is about 46384.1950237363. The cubic root of 2151493548 is about 1290.9616745918.

The spelling of 2151493548 in words is "two billion, one hundred fifty-one million, four hundred ninety-three thousand, five hundred forty-eight".