1242160 has 20 divisors (see below), whose sum is σ = 2888208. Its totient is φ = 496832.

The previous prime is 1242151. The next prime is 1242167. The reversal of 1242160 is 612421.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1242160² = 3085922931200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1242167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7684 + ... + 7843.

2^1242160 is an apocalyptic number.

1242160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242160 is an abundant number, since it is smaller than the sum of its proper divisors (1646048).

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

1242160 is a wasteful number, since it uses less digits than its factorization.

1242160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15540 (or 15534 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1242160 is about 1114.5223192023. The cubic root of 1242160 is about 107.4960517749.

Adding to 1242160 its reverse (612421), we get a palindrome (1854581).

The spelling of 1242160 in words is "one million, two hundred forty-two thousand, one hundred sixty".