45781562 has 4 divisors (see below), whose sum is σ = 68672346. Its totient is φ = 22890780.

The previous prime is 45781553. The next prime is 45781573. The reversal of 45781562 is 26518754.

45781562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26518754 = 2 ⋅13259377.

It can be written as a sum of positive squares in only one way, i.e., 37834801 + 7946761 = 6151^2 + 2819^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11445389 + ... + 11445392.

Almost surely, 2^45781562 is an apocalyptic number.

45781562 is a deficient number, since it is larger than the sum of its proper divisors (22890784).

45781562 is a wasteful number, since it uses less digits than its factorization.

45781562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22890783.

The product of its digits is 67200, while the sum is 38.

The square root of 45781562 is about 6766.2073571536. The cubic root of 45781562 is about 357.7367320498.

The spelling of 45781562 in words is "forty-five million, seven hundred eighty-one thousand, five hundred sixty-two".