1477720145 has 8 divisors (see below), whose sum is σ = 1934470080. Its totient is φ = 1074705520.

The previous prime is 1477720129. The next prime is 1477720157. The reversal of 1477720145 is 5410277741.

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

It is not a de Polignac number, because 1477720145 - 2⁴ = 1477720129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1477720099 and 1477720108.

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, 13433765 + ... + 13433874.

It is an arithmetic number, because the mean of its divisors is an integer number (241808760).

Almost surely, 2^1477720145 is an apocalyptic number.

It is an amenable number.

1477720145 is a deficient number, since it is larger than the sum of its proper divisors (456749935).

1477720145 is a wasteful number, since it uses less digits than its factorization.

1477720145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26867655.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 1477720145 is about 38441.1256989178. The cubic root of 1477720145 is about 1139.0183775760.

Adding to 1477720145 its reverse (5410277741), we get a palindrome (6887997886).

The spelling of 1477720145 in words is "one billion, four hundred seventy-seven million, seven hundred twenty thousand, one hundred forty-five".