1400511421 has 2 divisors, whose sum is σ = 1400511422. Its totient is φ = 1400511420.

The previous prime is 1400511367. The next prime is 1400511433. The reversal of 1400511421 is 1241150041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1224020196 + 176491225 = 34986^2 + 13285^2 .

It is an emirp because it is prime and its reverse (1241150041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400511421 - 2¹³ = 1400503229 is a prime.

It is a super-2 number, since 2×1400511421² = 3922864480702878482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400518421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700255710 + 700255711.

It is an arithmetic number, because the mean of its divisors is an integer number (700255711).

Almost surely, 2^1400511421 is an apocalyptic number.

It is an amenable number.

1400511421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400511421 is an equidigital number, since it uses as much as digits as its factorization.

1400511421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1400511421 is about 37423.4073943034. The cubic root of 1400511421 is about 1118.8251447876.

Adding to 1400511421 its reverse (1241150041), we get a palindrome (2641661462).

The spelling of 1400511421 in words is "one billion, four hundred million, five hundred eleven thousand, four hundred twenty-one".