1401167087 has 8 divisors (see below), whose sum is σ = 1437601200. Its totient is φ = 1364840640.

The previous prime is 1401167057. The next prime is 1401167093. The reversal of 1401167087 is 7807611041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401167087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401167057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 52937.

It is an arithmetic number, because the mean of its divisors is an integer number (179700150).

Almost surely, 2^1401167087 is an apocalyptic number.

1401167087 is a deficient number, since it is larger than the sum of its proper divisors (36434113).

1401167087 is an equidigital number, since it uses as much as digits as its factorization.

1401167087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53833.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 1401167087 is about 37432.1664748382. The cubic root of 1401167087 is about 1118.9997146266. Note that the first 3 decimals are identical.

The spelling of 1401167087 in words is "one billion, four hundred one million, one hundred sixty-seven thousand, eighty-seven".