45302121 has 24 divisors (see below), whose sum is σ = 67636296. Its totient is φ = 29203200.

The previous prime is 45302119. The next prime is 45302123. The reversal of 45302121 is 12120354.

45302121 is a `hidden beast` number, since 453 + 0 + 212 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (45302119) and next prime (45302123).

It can be written as a sum of positive squares in 4 ways, for example, as 1265625 + 44036496 = 1125^2 + 6636^2 .

It is not a de Polignac number, because 45302121 - 2¹ = 45302119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45302094 and 45302103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45302123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34171 + ... + 35471.

It is an arithmetic number, because the mean of its divisors is an integer number (2818179).

Almost surely, 2^45302121 is an apocalyptic number.

It is an amenable number.

45302121 is a deficient number, since it is larger than the sum of its proper divisors (22334175).

45302121 is a wasteful number, since it uses less digits than its factorization.

45302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 45302121 is about 6730.6850320008. The cubic root of 45302121 is about 356.4835646577.

Adding to 45302121 its reverse (12120354), we get a palindrome (57422475).

The spelling of 45302121 in words is "forty-five million, three hundred two thousand, one hundred twenty-one".