45281377 has 8 divisors (see below), whose sum is σ = 46849896. Its totient is φ = 43731072.

The previous prime is 45281371. The next prime is 45281381. The reversal of 45281377 is 77318254.

It can be written as a sum of positive squares in 4 ways, for example, as 11826721 + 33454656 = 3439^2 + 5784^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45281377 is a prime.

It is a super-2 number, since 2×45281377² = 4100806206032258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45281371) 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, 603 + ... + 9535.

It is an arithmetic number, because the mean of its divisors is an integer number (5856237).

Almost surely, 2^45281377 is an apocalyptic number.

It is an amenable number.

45281377 is a deficient number, since it is larger than the sum of its proper divisors (1568519).

45281377 is a wasteful number, since it uses less digits than its factorization.

45281377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107.

The product of its digits is 47040, while the sum is 37.

The square root of 45281377 is about 6729.1438534185. The cubic root of 45281377 is about 356.4291446592.

The spelling of 45281377 in words is "forty-five million, two hundred eighty-one thousand, three hundred seventy-seven".