45212508 has 144 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 12700800.

The previous prime is 45212491. The next prime is 45212513. The reversal of 45212508 is 80521254.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355941 + ... + 356067.

It is an arithmetic number, because the mean of its divisors is an integer number (931840).

Almost surely, 2^45212508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45212508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67092480).

45212508 is an abundant number, since it is smaller than the sum of its proper divisors (88972452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45212508 is a wasteful number, since it uses less digits than its factorization.

45212508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 45212508 is about 6724.0246876406. The cubic root of 45212508 is about 356.2483538243.

The spelling of 45212508 in words is "forty-five million, two hundred twelve thousand, five hundred eight".