2154254051 has 4 divisors (see below), whose sum is σ = 2154461112. Its totient is φ = 2154046992.

The previous prime is 2154254027. The next prime is 2154254099. The reversal of 2154254051 is 1504524512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2154254051 - 2⁶ = 2154253987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154254651) 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, 87050 + ... + 109023.

It is an arithmetic number, because the mean of its divisors is an integer number (538615278).

Almost surely, 2^2154254051 is an apocalyptic number.

2154254051 is a deficient number, since it is larger than the sum of its proper divisors (207061).

2154254051 is a wasteful number, since it uses less digits than its factorization.

2154254051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207060.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2154254051 is about 46413.9424203547. The cubic root of 2154254051 is about 1291.5135672545.

Adding to 2154254051 its reverse (1504524512), we get a palindrome (3658778563).

The spelling of 2154254051 in words is "two billion, one hundred fifty-four million, two hundred fifty-four thousand, fifty-one".