45916421 has 2 divisors, whose sum is σ = 45916422. Its totient is φ = 45916420.

The previous prime is 45916411. The next prime is 45916427. The reversal of 45916421 is 12461954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45832900 + 83521 = 6770^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 45916421 - 2⁶ = 45916357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45916427) 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 as a sum of consecutive naturals, namely, 22958210 + 22958211.

It is an arithmetic number, because the mean of its divisors is an integer number (22958211).

Almost surely, 2^45916421 is an apocalyptic number.

It is an amenable number.

45916421 is a deficient number, since it is larger than the sum of its proper divisors (1).

45916421 is an equidigital number, since it uses as much as digits as its factorization.

45916421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 45916421 is about 6776.1656561805. The cubic root of 45916421 is about 358.0876500637.

The spelling of 45916421 in words is "forty-five million, nine hundred sixteen thousand, four hundred twenty-one".