1400789101 has 2 divisors, whose sum is σ = 1400789102. Its totient is φ = 1400789100.

The previous prime is 1400789087. The next prime is 1400789141. The reversal of 1400789101 is 1019870041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376484201 + 24304900 = 37101^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400789101 - 2¹⁷ = 1400658029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400789141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700394550 + 700394551.

It is an arithmetic number, because the mean of its divisors is an integer number (700394551).

Almost surely, 2^1400789101 is an apocalyptic number.

It is an amenable number.

1400789101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400789101 is an equidigital number, since it uses as much as digits as its factorization.

1400789101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 1400789101 is about 37427.1171879428. The cubic root of 1400789101 is about 1118.8990832150.

The spelling of 1400789101 in words is "one billion, four hundred million, seven hundred eighty-nine thousand, one hundred one".