1354903897 has 2 divisors, whose sum is σ = 1354903898. Its totient is φ = 1354903896.

The previous prime is 1354903873. The next prime is 1354903909. The reversal of 1354903897 is 7983094531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114157641 + 240746256 = 33379^2 + 15516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354903897 - 2⁷ = 1354903769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1354903897.

It is not a weakly prime, because it can be changed into another prime (1354903997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677451948 + 677451949.

It is an arithmetic number, because the mean of its divisors is an integer number (677451949).

Almost surely, 2^1354903897 is an apocalyptic number.

It is an amenable number.

1354903897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354903897 is an equidigital number, since it uses as much as digits as its factorization.

1354903897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1354903897 is about 36809.0192344213. The cubic root of 1354903897 is about 1106.5460629184.

The spelling of 1354903897 in words is "one billion, three hundred fifty-four million, nine hundred three thousand, eight hundred ninety-seven".