45851897 has 30 divisors (see below), whose sum is σ = 58434462. Its totient is φ = 35957376.

The previous prime is 45851891. The next prime is 45851951. The reversal of 45851897 is 79815854.

It can be written as a sum of positive squares in 3 ways, for example, as 4648336 + 41203561 = 2156^2 + 6419^2 .

It is not a de Polignac number, because 45851897 - 2⁴ = 45851881 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (45851891) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 405713 + ... + 405825.

Almost surely, 2^45851897 is an apocalyptic number.

It is an amenable number.

45851897 is a deficient number, since it is larger than the sum of its proper divisors (12582565).

45851897 is an equidigital number, since it uses as much as digits as its factorization.

45851897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 133 counting only the distinct ones).

The product of its digits is 403200, while the sum is 47.

The square root of 45851897 is about 6771.4028827120. The cubic root of 45851897 is about 357.9198373411.

The spelling of 45851897 in words is "forty-five million, eight hundred fifty-one thousand, eight hundred ninety-seven".