45245197 has 4 divisors (see below), whose sum is σ = 45753660. Its totient is φ = 44736736.

The previous prime is 45245149. The next prime is 45245201. The reversal of 45245197 is 79154254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79154254 = 2 ⋅39577127.

It can be written as a sum of positive squares in 2 ways, for example, as 32421636 + 12823561 = 5694^2 + 3581^2 .

It is a cyclic number.

It is not a de Polignac number, because 45245197 - 2¹⁵ = 45212429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45245297) 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, 254098 + ... + 254275.

It is an arithmetic number, because the mean of its divisors is an integer number (11438415).

Almost surely, 2^45245197 is an apocalyptic number.

It is an amenable number.

45245197 is a deficient number, since it is larger than the sum of its proper divisors (508463).

45245197 is an equidigital number, since it uses as much as digits as its factorization.

45245197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508462.

The product of its digits is 50400, while the sum is 37.

The square root of 45245197 is about 6726.4550098845. The cubic root of 45245197 is about 356.3341899311.

The spelling of 45245197 in words is "forty-five million, two hundred forty-five thousand, one hundred ninety-seven".