45145332 has 18 divisors (see below), whose sum is σ = 114117458. Its totient is φ = 15048432.

The previous prime is 45145301. The next prime is 45145363. The reversal of 45145332 is 23354154.

It is an interprime number because it is at equal distance from previous prime (45145301) and next prime (45145363).

It can be written as a sum of positive squares in only one way, i.e., 35928036 + 9217296 = 5994^2 + 3036^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45145296 and 45145305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626983 + ... + 627054.

Almost surely, 2^45145332 is an apocalyptic number.

It is an amenable number.

45145332 is an abundant number, since it is smaller than the sum of its proper divisors (68972126).

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

45145332 is a wasteful number, since it uses less digits than its factorization.

45145332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254047 (or 1254042 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 45145332 is about 6719.0276082183. The cubic root of 45145332 is about 356.0718303907.

Adding to 45145332 its reverse (23354154), we get a palindrome (68499486).

The spelling of 45145332 in words is "forty-five million, one hundred forty-five thousand, three hundred thirty-two".