1494228537 has 12 divisors (see below), whose sum is σ = 2159514084. Its totient is φ = 995605920.

The previous prime is 1494228529. The next prime is 1494228553. The reversal of 1494228537 is 7358224941.

1494228537 is a `hidden beast` number, since 1 + 4 + 94 + 2 + 28 + 537 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 485276841 + 1008951696 = 22029^2 + 31764^2 .

It is not a de Polignac number, because 1494228537 - 2³ = 1494228529 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1494228492 and 1494228501.

It is not an unprimeable number, because it can be changed into a prime (1494228587) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 27858 + ... + 61355.

It is an arithmetic number, because the mean of its divisors is an integer number (179959507).

Almost surely, 2^1494228537 is an apocalyptic number.

It is an amenable number.

1494228537 is a deficient number, since it is larger than the sum of its proper divisors (665285547).

1494228537 is a wasteful number, since it uses less digits than its factorization.

1494228537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91080 (or 91077 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1494228537 is about 38655.2523856720. The cubic root of 1494228537 is about 1143.2442053466.

The spelling of 1494228537 in words is "one billion, four hundred ninety-four million, two hundred twenty-eight thousand, five hundred thirty-seven".