1201560 has 128 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 276480.

The previous prime is 1201559. The next prime is 1201567. The reversal of 1201560 is 651021.

1201560 = T₅₉ + T₆₀ + ... + T₁₉₄.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201567) 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, 38745 + ... + 38775.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2^1201560 is an apocalyptic number.

1201560 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 1201560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073600).

1201560 is an abundant number, since it is smaller than the sum of its proper divisors (2945640).

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

1201560 is a wasteful number, since it uses less digits than its factorization.

1201560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1201560 is about 1096.1569230726. The cubic root of 1201560 is about 106.3118855163.

Adding to 1201560 its reverse (651021), we get a palindrome (1852581).

The spelling of 1201560 in words is "one million, two hundred one thousand, five hundred sixty".