1401500389 has 2 divisors, whose sum is σ = 1401500390. Its totient is φ = 1401500388.

The previous prime is 1401500327. The next prime is 1401500431. The reversal of 1401500389 is 9830051041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053976225 + 347524164 = 32465^2 + 18642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401500389 - 2⁹ = 1401499877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401500389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401500489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700750194 + 700750195.

It is an arithmetic number, because the mean of its divisors is an integer number (700750195).

Almost surely, 2^1401500389 is an apocalyptic number.

It is an amenable number.

1401500389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401500389 is an equidigital number, since it uses as much as digits as its factorization.

1401500389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1401500389 is about 37436.6182901180. The cubic root of 1401500389 is about 1119.0884347793.

The spelling of 1401500389 in words is "one billion, four hundred one million, five hundred thousand, three hundred eighty-nine".