1450131997 has 2 divisors, whose sum is σ = 1450131998. Its totient is φ = 1450131996.

The previous prime is 1450131983. The next prime is 1450132039. The reversal of 1450131997 is 7991310541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1329769156 + 120362841 = 36466^2 + 10971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450131997 - 2²⁷ = 1315914269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1450131197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725065998 + 725065999.

It is an arithmetic number, because the mean of its divisors is an integer number (725065999).

Almost surely, 2^1450131997 is an apocalyptic number.

It is an amenable number.

1450131997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450131997 is an equidigital number, since it uses as much as digits as its factorization.

1450131997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1450131997 is about 38080.5986953987. The cubic root of 1450131997 is about 1131.8855399696.

The spelling of 1450131997 in words is "one billion, four hundred fifty million, one hundred thirty-one thousand, nine hundred ninety-seven".