45379481 has 4 divisors (see below), whose sum is σ = 51862272. Its totient is φ = 38896692.

The previous prime is 45379471. The next prime is 45379507. The reversal of 45379481 is 18497354.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18497354 = 2 ⋅9248677.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45379481 is a prime.

It is a super-2 number, since 2×45379481² = 4118594591658722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45379421) 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, 3241385 + ... + 3241398.

It is an arithmetic number, because the mean of its divisors is an integer number (12965568).

Almost surely, 2^45379481 is an apocalyptic number.

It is an amenable number.

45379481 is a deficient number, since it is larger than the sum of its proper divisors (6482791).

45379481 is an equidigital number, since it uses as much as digits as its factorization.

45379481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482790.

The product of its digits is 120960, while the sum is 41.

The square root of 45379481 is about 6736.4293954587. The cubic root of 45379481 is about 356.6863652128.

The spelling of 45379481 in words is "forty-five million, three hundred seventy-nine thousand, four hundred eighty-one".