1401155 has 32 divisors (see below), whose sum is σ = 2112000. Its totient is φ = 889056.

The previous prime is 1401151. The next prime is 1401167. The reversal of 1401155 is 5511041.

It is not a de Polignac number, because 1401155 - 2² = 1401151 is a prime.

It is a super-3 number, since 3×1401155³ = 8252391013337396625, which contains 333 as substring.

1401155 is a modest number, since divided by 1155 gives 140 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1401151) 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, 32564 + ... + 32606.

It is an arithmetic number, because the mean of its divisors is an integer number (66000).

2^1401155 is an apocalyptic number.

1401155 is a deficient number, since it is larger than the sum of its proper divisors (710845).

1401155 is an equidigital number, since it uses as much as digits as its factorization.

1401155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1401155 is about 1183.7039325777. The cubic root of 1401155 is about 111.8996496978.

Adding to 1401155 its reverse (5511041), we get a palindrome (6912196).

The spelling of 1401155 in words is "one million, four hundred one thousand, one hundred fifty-five".