1061501500 has 96 divisors (see below), whose sum is σ = 2525140800. Its totient is φ = 388281600.

The previous prime is 1061501491. The next prime is 1061501537. The reversal of 1061501500 is 51051601.

It is a super-2 number, since 2×1061501500² = 2253570869004500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273574 + ... + 277426.

It is an arithmetic number, because the mean of its divisors is an integer number (26303550).

Almost surely, 2^1061501500 is an apocalyptic number.

1061501500 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 1061501500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262570400).

1061501500 is an abundant number, since it is smaller than the sum of its proper divisors (1463639300).

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

1061501500 is a wasteful number, since it uses less digits than its factorization.

1061501500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1061501500 is about 32580.6921350667. The cubic root of 1061501500 is about 1020.0940256780.

The spelling of 1061501500 in words is "one billion, sixty-one million, five hundred one thousand, five hundred".