1125461431 has 2 divisors, whose sum is σ = 1125461432. Its totient is φ = 1125461430.

The previous prime is 1125461401. The next prime is 1125461459. The reversal of 1125461431 is 1341645211.

It is an a-pointer prime, because the next prime (1125461459) can be obtained adding 1125461431 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125461431 - 2¹⁷ = 1125330359 is a prime.

It is a super-2 number, since 2×1125461431² = 2533326865337135522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125461431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125461401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562730715 + 562730716.

It is an arithmetic number, because the mean of its divisors is an integer number (562730716).

Almost surely, 2^1125461431 is an apocalyptic number.

1125461431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125461431 is an equidigital number, since it uses as much as digits as its factorization.

1125461431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

The square root of 1125461431 is about 33547.8975645271. The cubic root of 1125461431 is about 1040.1840869278.

The spelling of 1125461431 in words is "one billion, one hundred twenty-five million, four hundred sixty-one thousand, four hundred thirty-one".