45538397 has 2 divisors, whose sum is σ = 45538398. Its totient is φ = 45538396.

The previous prime is 45538373. The next prime is 45538433. The reversal of 45538397 is 79383554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31595641 + 13942756 = 5621^2 + 3734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45538397 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 (45538327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22769198 + 22769199.

It is an arithmetic number, because the mean of its divisors is an integer number (22769199).

Almost surely, 2^45538397 is an apocalyptic number.

It is an amenable number.

45538397 is a deficient number, since it is larger than the sum of its proper divisors (1).

45538397 is an equidigital number, since it uses as much as digits as its factorization.

45538397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The square root of 45538397 is about 6748.2143564057. The cubic root of 45538397 is about 357.1022443038.

The spelling of 45538397 in words is "forty-five million, five hundred thirty-eight thousand, three hundred ninety-seven".