45502144 has 14 divisors (see below), whose sum is σ = 90293444. Its totient is φ = 22751040.

The previous prime is 45502139. The next prime is 45502147. The reversal of 45502144 is 44120554.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45502147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355422 + ... + 355549.

Almost surely, 2^45502144 is an apocalyptic number.

It is an amenable number.

45502144 is a deficient number, since it is larger than the sum of its proper divisors (44791300).

45502144 is an equidigital number, since it uses as much as digits as its factorization.

45502144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710983 (or 710973 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 45502144 is about 6745.5277035974. The cubic root of 45502144 is about 357.0074564217.

Adding to 45502144 its reverse (44120554), we get a palindrome (89622698).

The spelling of 45502144 in words is "forty-five million, five hundred two thousand, one hundred forty-four".