154227459540 has 768 divisors, whose sum is σ = 584138096640. Its totient is φ = 29465856000.

The previous prime is 154227459461. The next prime is 154227459541. The reversal of 154227459540 is 45954722451.

It is a happy number.

It is a super-2 number, since 2×154227459540² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154227459540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154227459541) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 294889719 + ... + 294890241.

It is an arithmetic number, because the mean of its divisors is an integer number (760596480).

Almost surely, 2^154227459540 is an apocalyptic number.

154227459540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154227459540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292069048320).

154227459540 is an abundant number, since it is smaller than the sum of its proper divisors (429910637100).

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

154227459540 is a wasteful number, since it uses less digits than its factorization.

154227459540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 154227459540 in words is "one hundred fifty-four billion, two hundred twenty-seven million, four hundred fifty-nine thousand, five hundred forty".