154871420 has 96 divisors (see below), whose sum is σ = 374685696. Its totient is φ = 53222400.

The previous prime is 154871417. The next prime is 154871429. The reversal of 154871420 is 24178451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154871429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642500 + ... + 642740.

It is an arithmetic number, because the mean of its divisors is an integer number (3902976).

Almost surely, 2^154871420 is an apocalyptic number.

154871420 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 154871420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187342848).

154871420 is an abundant number, since it is smaller than the sum of its proper divisors (219814276).

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

154871420 is a wasteful number, since it uses less digits than its factorization.

154871420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 154871420 is about 12444.7346295532. The cubic root of 154871420 is about 537.0199586389.

The spelling of 154871420 in words is "one hundred fifty-four million, eight hundred seventy-one thousand, four hundred twenty".