1400111213 has 16 divisors (see below), whose sum is σ = 1468724400. Its totient is φ = 1332979200.

The previous prime is 1400111189. The next prime is 1400111227. The reversal of 1400111213 is 3121110041.

It can be written as a sum of positive squares in 8 ways, for example, as 115820644 + 1284290569 = 10762^2 + 35837^2 .

It is not a de Polignac number, because 1400111213 - 2¹⁶ = 1400045677 is a prime.

It is a super-2 number, since 2×1400111213² = 3920622817536662738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400111263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735563 + ... + 737463.

It is an arithmetic number, because the mean of its divisors is an integer number (91795275).

Almost surely, 2^1400111213 is an apocalyptic number.

It is an amenable number.

1400111213 is a deficient number, since it is larger than the sum of its proper divisors (68613187).

1400111213 is a wasteful number, since it uses less digits than its factorization.

1400111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1400111213 is about 37418.0599844514. The cubic root of 1400111213 is about 1118.7185633812.

Adding to 1400111213 its reverse (3121110041), we get a palindrome (4521221254).

The spelling of 1400111213 in words is "one billion, four hundred million, one hundred eleven thousand, two hundred thirteen".