45142403 has 2 divisors, whose sum is σ = 45142404. Its totient is φ = 45142402.

The previous prime is 45142393. The next prime is 45142453. The reversal of 45142403 is 30424154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45142403 - 2⁴ = 45142387 is a prime.

It is a super-2 number, since 2×45142403² = 4075673097228818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45142453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571201 + 22571202.

It is an arithmetic number, because the mean of its divisors is an integer number (22571202).

Almost surely, 2^45142403 is an apocalyptic number.

45142403 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142403 is an equidigital number, since it uses as much as digits as its factorization.

45142403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 45142403 is about 6718.8096415957. The cubic root of 45142403 is about 356.0641296539.

Adding to 45142403 its reverse (30424154), we get a palindrome (75566557).

The spelling of 45142403 in words is "forty-five million, one hundred forty-two thousand, four hundred three".