1380122501 has 2 divisors, whose sum is σ = 1380122502. Its totient is φ = 1380122500.

The previous prime is 1380122477. The next prime is 1380122531. The reversal of 1380122501 is 1052210831.

It is a happy number.

It is a Cunningham number, because it is equal to 37150²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1380122500 + 1 = 37150^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380122501 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380122531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690061250 + 690061251.

It is an arithmetic number, because the mean of its divisors is an integer number (690061251).

Almost surely, 2^1380122501 is an apocalyptic number.

It is an amenable number.

1380122501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380122501 is an equidigital number, since it uses as much as digits as its factorization.

1380122501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1380122501 is about 37150.0000134590. Note that the first 4 decimals coincide. The cubic root of 1380122501 is about 1113.3692237365.

The spelling of 1380122501 in words is "one billion, three hundred eighty million, one hundred twenty-two thousand, five hundred one".