45147237 has 8 divisors (see below), whose sum is σ = 60349536. Its totient is φ = 30021552.

The previous prime is 45147233. The next prime is 45147241. The reversal of 45147237 is 73274154.

It is an interprime number because it is at equal distance from previous prime (45147233) and next prime (45147241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45147237 - 2² = 45147233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45147198 and 45147207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45147233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17763 + ... + 20144.

It is an arithmetic number, because the mean of its divisors is an integer number (7543692).

Almost surely, 2^45147237 is an apocalyptic number.

It is an amenable number.

45147237 is a deficient number, since it is larger than the sum of its proper divisors (15202299).

45147237 is a wasteful number, since it uses less digits than its factorization.

45147237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38307.

The product of its digits is 23520, while the sum is 33.

The square root of 45147237 is about 6719.1693683074. The cubic root of 45147237 is about 356.0768387143.

The spelling of 45147237 in words is "forty-five million, one hundred forty-seven thousand, two hundred thirty-seven".