45061421 has 2 divisors, whose sum is σ = 45061422. Its totient is φ = 45061420.

The previous prime is 45061417. The next prime is 45061433. The reversal of 45061421 is 12416054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41860900 + 3200521 = 6470^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 45061421 - 2² = 45061417 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 (45061411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22530710 + 22530711.

It is an arithmetic number, because the mean of its divisors is an integer number (22530711).

Almost surely, 2^45061421 is an apocalyptic number.

It is an amenable number.

45061421 is a deficient number, since it is larger than the sum of its proper divisors (1).

45061421 is an equidigital number, since it uses as much as digits as its factorization.

45061421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 45061421 is about 6712.7804224479. The cubic root of 45061421 is about 355.8510849842.

Adding to 45061421 its reverse (12416054), we get a palindrome (57477475).

The spelling of 45061421 in words is "forty-five million, sixty-one thousand, four hundred twenty-one".