45097861 has 4 divisors (see below), whose sum is σ = 45668800. Its totient is φ = 44526924.

The previous prime is 45097853. The next prime is 45097873. The reversal of 45097861 is 16879054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45097861 - 2³ = 45097853 is a prime.

It is a super-4 number, since 4×45097861⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45097891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285351 + ... + 285508.

It is an arithmetic number, because the mean of its divisors is an integer number (11417200).

Almost surely, 2^45097861 is an apocalyptic number.

It is an amenable number.

45097861 is a deficient number, since it is larger than the sum of its proper divisors (570939).

45097861 is an equidigital number, since it uses as much as digits as its factorization.

45097861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570938.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 45097861 is about 6715.4940994688. The cubic root of 45097861 is about 355.9469816470.

The spelling of 45097861 in words is "forty-five million, ninety-seven thousand, eight hundred sixty-one".