151555020 has 72 divisors (see below), whose sum is σ = 447927984. Its totient is φ = 38282112.

The previous prime is 151555013. The next prime is 151555021. The reversal of 151555020 is 20555151.

It is not an unprimeable number, because it can be changed into a prime (151555021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18162 + ... + 25158.

It is an arithmetic number, because the mean of its divisors is an integer number (6221222).

Almost surely, 2^151555020 is an apocalyptic number.

151555020 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 151555020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223963992).

151555020 is an abundant number, since it is smaller than the sum of its proper divisors (296372964).

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

151555020 is a wasteful number, since it uses less digits than its factorization.

151555020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047 (or 7026 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 151555020 is about 12310.7684569242. The cubic root of 151555020 is about 533.1590376637.

The spelling of 151555020 in words is "one hundred fifty-one million, five hundred fifty-five thousand, twenty".