1401155356 has 6 divisors (see below), whose sum is σ = 2452021880. Its totient is φ = 700577676.

The previous prime is 1401155341. The next prime is 1401155359. The reversal of 1401155356 is 6535511041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401155359) by changing a digit.

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 as a sum of consecutive naturals, namely, 175144416 + ... + 175144423.

Almost surely, 2^1401155356 is an apocalyptic number.

It is an amenable number.

1401155356 is a deficient number, since it is larger than the sum of its proper divisors (1050866524).

1401155356 is a wasteful number, since it uses less digits than its factorization.

1401155356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350288843 (or 350288841 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1401155356 is about 37432.0097777290. The cubic root of 1401155356 is about 1118.9965917485.

Adding to 1401155356 its reverse (6535511041), we get a palindrome (7936666397).

The spelling of 1401155356 in words is "one billion, four hundred one million, one hundred fifty-five thousand, three hundred fifty-six".