155001500 has 48 divisors (see below), whose sum is σ = 340931136. Its totient is φ = 61560000.

The previous prime is 155001499. The next prime is 155001523. The reversal of 155001500 is 5100551.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 74474 + ... + 76526.

It is an arithmetic number, because the mean of its divisors is an integer number (7102732).

Almost surely, 2^155001500 is an apocalyptic number.

155001500 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 155001500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170465568).

155001500 is an abundant number, since it is smaller than the sum of its proper divisors (185929636).

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

155001500 is a wasteful number, since it uses less digits than its factorization.

155001500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 155001500 is about 12449.9598392927. The cubic root of 155001500 is about 537.1702682906.

The spelling of 155001500 in words is "one hundred fifty-five million, one thousand, five hundred".