920147481 has 12 divisors (see below), whose sum is σ = 1449929520. Its totient is φ = 557665080.

The previous prime is 920147477. The next prime is 920147483. The reversal of 920147481 is 184741029.

920147481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 920147481 - 2² = 920147477 is a prime.

It is a super-2 number, since 2×920147481² = 1693342773581290722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (920147483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4647111 + ... + 4647308.

It is an arithmetic number, because the mean of its divisors is an integer number (120827460).

Almost surely, 2^920147481 is an apocalyptic number.

It is an amenable number.

920147481 is a deficient number, since it is larger than the sum of its proper divisors (529782039).

920147481 is a wasteful number, since it uses less digits than its factorization.

920147481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9294436 (or 9294433 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 920147481 is about 30333.9328310722. The cubic root of 920147481 is about 972.6407938669.

The spelling of 920147481 in words is "nine hundred twenty million, one hundred forty-seven thousand, four hundred eighty-one".