1431045269 has 2 divisors, whose sum is σ = 1431045270. Its totient is φ = 1431045268.

The previous prime is 1431045163. The next prime is 1431045323. The reversal of 1431045269 is 9625401341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1379751025 + 51294244 = 37145^2 + 7162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431045269 is a prime.

It is a super-2 number, since 2×1431045269² = 4095781123854564722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431045769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715522634 + 715522635.

It is an arithmetic number, because the mean of its divisors is an integer number (715522635).

Almost surely, 2^1431045269 is an apocalyptic number.

It is an amenable number.

1431045269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431045269 is an equidigital number, since it uses as much as digits as its factorization.

1431045269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1431045269 is about 37829.1589782274. The cubic root of 1431045269 is about 1126.8976089712.

The spelling of 1431045269 in words is "one billion, four hundred thirty-one million, forty-five thousand, two hundred sixty-nine".