2154477523 has 4 divisors (see below), whose sum is σ = 2350339128. Its totient is φ = 1958615920.

The previous prime is 2154477491. The next prime is 2154477529. The reversal of 2154477523 is 3257744512.

2154477523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2154477523 - 2⁵ = 2154477491 is a prime.

It is a super-2 number, since 2×2154477523² = 9283546794224431058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154477529) 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, 97930786 + ... + 97930807.

It is an arithmetic number, because the mean of its divisors is an integer number (587584782).

Almost surely, 2^2154477523 is an apocalyptic number.

2154477523 is a deficient number, since it is larger than the sum of its proper divisors (195861605).

2154477523 is a wasteful number, since it uses less digits than its factorization.

2154477523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195861604.

The product of its digits is 235200, while the sum is 40.

The square root of 2154477523 is about 46416.3497379964. The cubic root of 2154477523 is about 1291.5582241881.

The spelling of 2154477523 in words is "two billion, one hundred fifty-four million, four hundred seventy-seven thousand, five hundred twenty-three".