45051419 has 4 divisors (see below), whose sum is σ = 51487344. Its totient is φ = 38615496.

The previous prime is 45051379. The next prime is 45051421. The reversal of 45051419 is 91415054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91415054 = 2 ⋅45707527.

It is a cyclic number.

It is not a de Polignac number, because 45051419 - 2²⁰ = 44002843 is a prime.

It is a super-2 number, since 2×45051419² = 4059260707827122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45051391 and 45051400.

It is not an unprimeable number, because it can be changed into a prime (45051499) 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, 3217952 + ... + 3217965.

It is an arithmetic number, because the mean of its divisors is an integer number (12871836).

Almost surely, 2^45051419 is an apocalyptic number.

45051419 is a deficient number, since it is larger than the sum of its proper divisors (6435925).

45051419 is an equidigital number, since it uses as much as digits as its factorization.

45051419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435924.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 45051419 is about 6712.0353842929. The cubic root of 45051419 is about 355.8247543608.

Subtracting 45051419 from its reverse (91415054), we obtain a triangular number (46363635 = T₉₆₂₉).

The spelling of 45051419 in words is "forty-five million, fifty-one thousand, four hundred nineteen".