1350861397 has 2 divisors, whose sum is σ = 1350861398. Its totient is φ = 1350861396.

The previous prime is 1350861371. The next prime is 1350861401. The reversal of 1350861397 is 7931680531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 828921681 + 521939716 = 28791^2 + 22846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350861397 - 2¹⁵ = 1350828629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1350861097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675430698 + 675430699.

It is an arithmetic number, because the mean of its divisors is an integer number (675430699).

Almost surely, 2^1350861397 is an apocalyptic number.

It is an amenable number.

1350861397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350861397 is an equidigital number, since it uses as much as digits as its factorization.

1350861397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1350861397 is about 36754.0664008760. The cubic root of 1350861397 is about 1105.4444672932. Note that the first 4 decimals are identical.

The spelling of 1350861397 in words is "one billion, three hundred fifty million, eight hundred sixty-one thousand, three hundred ninety-seven".