6540154 has 8 divisors (see below), whose sum is σ = 9907668. Its totient is φ = 3237600.

The previous prime is 6540139. The next prime is 6540169. The reversal of 6540154 is 4510456.

It is an interprime number because it is at equal distance from previous prime (6540139) and next prime (6540169).

It can be written as a sum of positive squares in 2 ways, for example, as 5688225 + 851929 = 2385^2 + 923^2 .

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

It is a super-2 number, since 2×6540154² = 85547228687432, which contains 22 as substring.

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, 15987 + ... + 16390.

Almost surely, 2^6540154 is an apocalyptic number.

6540154 is a deficient number, since it is larger than the sum of its proper divisors (3367514).

6540154 is a wasteful number, since it uses less digits than its factorization.

6540154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32480.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 6540154 is about 2557.3724797143. The cubic root of 6540154 is about 187.0090647326.

The spelling of 6540154 in words is "six million, five hundred forty thousand, one hundred fifty-four".