154666540 has 36 divisors (see below), whose sum is σ = 377830656. Its totient is φ = 53028192.

The previous prime is 154666529. The next prime is 154666543. The reversal of 154666540 is 45666451.

It is a self number, because there is not a number n which added to its sum of digits gives 154666540.

It is not an unprimeable number, because it can be changed into a prime (154666543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77932 + ... + 79891.

It is an arithmetic number, because the mean of its divisors is an integer number (10495296).

Almost surely, 2^154666540 is an apocalyptic number.

154666540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154666540 is an abundant number, since it is smaller than the sum of its proper divisors (223164116).

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

154666540 is a wasteful number, since it uses less digits than its factorization.

154666540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157846 (or 157837 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 154666540 is about 12436.5003115828. The cubic root of 154666540 is about 536.7830455443.

It can be divided in two parts, 1546 and 66540, that added together give a palindrome (68086).

The spelling of 154666540 in words is "one hundred fifty-four million, six hundred sixty-six thousand, five hundred forty".