1405033997 has 2 divisors, whose sum is σ = 1405033998. Its totient is φ = 1405033996.

The previous prime is 1405033991. The next prime is 1405033999. The reversal of 1405033997 is 7993305041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1335244681 + 69789316 = 36541^2 + 8354^2 .

It is an emirp because it is prime and its reverse (7993305041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405033997 - 2¹⁰ = 1405032973 is a prime.

Together with 1405033999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405033991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702516998 + 702516999.

It is an arithmetic number, because the mean of its divisors is an integer number (702516999).

Almost surely, 2^1405033997 is an apocalyptic number.

It is an amenable number.

1405033997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405033997 is an equidigital number, since it uses as much as digits as its factorization.

1405033997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 1405033997 is about 37483.7831201708. The cubic root of 1405033997 is about 1120.0281660115.

The spelling of 1405033997 in words is "one billion, four hundred five million, thirty-three thousand, nine hundred ninety-seven".