1400021053 has 2 divisors, whose sum is σ = 1400021054. Its totient is φ = 1400021052.

The previous prime is 1400020981. The next prime is 1400021057. The reversal of 1400021053 is 3501200041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1328821209 + 71199844 = 36453^2 + 8438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400021053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400021057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700010526 + 700010527.

It is an arithmetic number, because the mean of its divisors is an integer number (700010527).

Almost surely, 2^1400021053 is an apocalyptic number.

It is an amenable number.

1400021053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400021053 is an equidigital number, since it uses as much as digits as its factorization.

1400021053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1400021053 is about 37416.8551992281. The cubic root of 1400021053 is about 1118.6945496148.

Adding to 1400021053 its reverse (3501200041), we get a palindrome (4901221094).

It can be divided in two parts, 14000 and 21053, that added together give a palindrome (35053).

The spelling of 1400021053 in words is "one billion, four hundred million, twenty-one thousand, fifty-three".