1431900493 has 2 divisors, whose sum is σ = 1431900494. Its totient is φ = 1431900492.

The previous prime is 1431900469. The next prime is 1431900499. The reversal of 1431900493 is 3940091341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320450244 + 111450249 = 36338^2 + 10557^2 .

It is an emirp because it is prime and its reverse (3940091341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431900493 - 2¹⁷ = 1431769421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431900499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715950246 + 715950247.

It is an arithmetic number, because the mean of its divisors is an integer number (715950247).

Almost surely, 2^1431900493 is an apocalyptic number.

It is an amenable number.

1431900493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431900493 is an equidigital number, since it uses as much as digits as its factorization.

1431900493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1431900493 is about 37840.4610569163. The cubic root of 1431900493 is about 1127.1220504987.

The spelling of 1431900493 in words is "one billion, four hundred thirty-one million, nine hundred thousand, four hundred ninety-three".