981477545 has 8 divisors (see below), whose sum is σ = 1186764480. Its totient is φ = 779187760.

The previous prime is 981477533. The next prime is 981477583. The reversal of 981477545 is 545774189.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-981477545 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 981477493 and 981477502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748565 + ... + 749874.

It is an arithmetic number, because the mean of its divisors is an integer number (148345560).

Almost surely, 2^981477545 is an apocalyptic number.

It is an amenable number.

981477545 is a deficient number, since it is larger than the sum of its proper divisors (205286935).

981477545 is a wasteful number, since it uses less digits than its factorization.

981477545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498575.

The product of its digits is 1411200, while the sum is 50.

The square root of 981477545 is about 31328.5420184215. The cubic root of 981477545 is about 993.7873310080.

The spelling of 981477545 in words is "nine hundred eighty-one million, four hundred seventy-seven thousand, five hundred forty-five".