154253540 has 24 divisors (see below), whose sum is σ = 370208832. Its totient is φ = 52886880.

The previous prime is 154253531. The next prime is 154253549. The reversal of 154253540 is 45352451.

It is an interprime number because it is at equal distance from previous prime (154253531) and next prime (154253549).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (154253549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550766 + ... + 551045.

It is an arithmetic number, because the mean of its divisors is an integer number (15425368).

Almost surely, 2^154253540 is an apocalyptic number.

154253540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154253540 is an abundant number, since it is smaller than the sum of its proper divisors (215955292).

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

154253540 is a wasteful number, since it uses less digits than its factorization.

154253540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101827 (or 1101825 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 154253540 is about 12419.8848625903. The cubic root of 154253540 is about 536.3048360671.

The spelling of 154253540 in words is "one hundred fifty-four million, two hundred fifty-three thousand, five hundred forty".