920745541 has 4 divisors (see below), whose sum is σ = 942158272. Its totient is φ = 899332812.

The previous prime is 920745523. The next prime is 920745547. The reversal of 920745541 is 145547029.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 920745541 - 2⁵ = 920745509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920745541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920745547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706301 + ... + 10706386.

It is an arithmetic number, because the mean of its divisors is an integer number (235539568).

Almost surely, 2^920745541 is an apocalyptic number.

It is an amenable number.

920745541 is a deficient number, since it is larger than the sum of its proper divisors (21412731).

920745541 is a wasteful number, since it uses less digits than its factorization.

920745541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21412730.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 920745541 is about 30343.7891668130. The cubic root of 920745541 is about 972.8514744313.

The spelling of 920745541 in words is "nine hundred twenty million, seven hundred forty-five thousand, five hundred forty-one".