919490141 has 2 divisors, whose sum is σ = 919490142. Its totient is φ = 919490140.

The previous prime is 919490129. The next prime is 919490171. The reversal of 919490141 is 141094919.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612364516 + 307125625 = 24746^2 + 17525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-919490141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 919490095 and 919490104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919490171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459745070 + 459745071.

It is an arithmetic number, because the mean of its divisors is an integer number (459745071).

Almost surely, 2^919490141 is an apocalyptic number.

It is an amenable number.

919490141 is a deficient number, since it is larger than the sum of its proper divisors (1).

919490141 is an equidigital number, since it uses as much as digits as its factorization.

919490141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 919490141 is about 30323.0958346934. The cubic root of 919490141 is about 972.4091252044.

The spelling of 919490141 in words is "nine hundred nineteen million, four hundred ninety thousand, one hundred forty-one".