45621461 has 4 divisors (see below), whose sum is σ = 45635052. Its totient is φ = 45607872.

The previous prime is 45621449. The next prime is 45621463. The reversal of 45621461 is 16412654.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10278436 + 35343025 = 3206^2 + 5945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45621461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45621463) 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 in 3 ways as a sum of consecutive naturals, for example, 2285 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (11408763).

Almost surely, 2^45621461 is an apocalyptic number.

It is an amenable number.

45621461 is a deficient number, since it is larger than the sum of its proper divisors (13591).

45621461 is an equidigital number, since it uses as much as digits as its factorization.

45621461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13590.

The product of its digits is 5760, while the sum is 29.

The square root of 45621461 is about 6754.3660694398. The cubic root of 45621461 is about 357.3192357212.

The spelling of 45621461 in words is "forty-five million, six hundred twenty-one thousand, four hundred sixty-one".