919042061 has 4 divisors (see below), whose sum is σ = 1050333792. Its totient is φ = 787750332.

The previous prime is 919042057. The next prime is 919042063. The reversal of 919042061 is 160240919.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160240919 = 43 ⋅3726533.

It is a cyclic number.

It is not a de Polignac number, because 919042061 - 2² = 919042057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919042063) 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, 65645855 + ... + 65645868.

It is an arithmetic number, because the mean of its divisors is an integer number (262583448).

Almost surely, 2^919042061 is an apocalyptic number.

It is an amenable number.

919042061 is a deficient number, since it is larger than the sum of its proper divisors (131291731).

919042061 is a wasteful number, since it uses less digits than its factorization.

919042061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131291730.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 919042061 is about 30315.7065066939. The cubic root of 919042061 is about 972.2511434935.

The spelling of 919042061 in words is "nine hundred nineteen million, forty-two thousand, sixty-one".