1145402437 has 2 divisors, whose sum is σ = 1145402438. Its totient is φ = 1145402436.

The previous prime is 1145402431. The next prime is 1145402471. The reversal of 1145402437 is 7342045411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142845636 + 2556801 = 33806^2 + 1599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145402437 - 2¹⁹ = 1144878149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145402399 and 1145402408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145402431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572701218 + 572701219.

It is an arithmetic number, because the mean of its divisors is an integer number (572701219).

Almost surely, 2^1145402437 is an apocalyptic number.

It is an amenable number.

1145402437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145402437 is an equidigital number, since it uses as much as digits as its factorization.

1145402437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1145402437 is about 33843.7946601737. The cubic root of 1145402437 is about 1046.2915091013.

Adding to 1145402437 its reverse (7342045411), we get a palindrome (8487447848).

The spelling of 1145402437 in words is "one billion, one hundred forty-five million, four hundred two thousand, four hundred thirty-seven".