1400111807 has 4 divisors (see below), whose sum is σ = 1445276736. Its totient is φ = 1354946880.

The previous prime is 1400111773. The next prime is 1400111819. The reversal of 1400111807 is 7081110041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400111807 - 2⁶ = 1400111743 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 (1400111897) 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, 22582418 + ... + 22582479.

It is an arithmetic number, because the mean of its divisors is an integer number (361319184).

Almost surely, 2^1400111807 is an apocalyptic number.

1400111807 is a deficient number, since it is larger than the sum of its proper divisors (45164929).

1400111807 is an equidigital number, since it uses as much as digits as its factorization.

1400111807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45164928.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 1400111807 is about 37418.0679217941. The cubic root of 1400111807 is about 1118.7187215874.

Adding to 1400111807 its reverse (7081110041), we get a palindrome (8481221848).

The spelling of 1400111807 in words is "one billion, four hundred million, one hundred eleven thousand, eight hundred seven".