2154254540 has 48 divisors (see below), whose sum is σ = 4575336192. Its totient is φ = 851944896.

The previous prime is 2154254539. The next prime is 2154254587. The reversal of 2154254540 is 454524512.

It is a super-2 number, since 2×2154254540² = 9281625246221223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2154254497 and 2154254506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026049 + ... + 2027111.

It is an arithmetic number, because the mean of its divisors is an integer number (95319504).

Almost surely, 2^2154254540 is an apocalyptic number.

2154254540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154254540 is an abundant number, since it is smaller than the sum of its proper divisors (2421081652).

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

2154254540 is a wasteful number, since it uses less digits than its factorization.

2154254540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 2154254540 is about 46413.9476881680. The cubic root of 2154254540 is about 1291.5136649758.

The spelling of 2154254540 in words is "two billion, one hundred fifty-four million, two hundred fifty-four thousand, five hundred forty".